{"title":"BMW G8X M3\/M4 - VANTA GOLD","description":"","products":[{"product_id":"s58-3-5-maxflow-downpipes-w-heatshield-for-g8x-m3-m4-g87-m2-yonristic-performance","title":"S58 3.5'' Maxflow Downpipes w\/ Heatshield for G8X M3 M4 \u0026 G87 M2 - Yonristic Performance","description":"\u003cp data-end=\"343\" data-start=\"266\"\u003e\u003cstrong data-end=\"343\" data-start=\"266\"\u003eMaximum flow for the S58. Built to handle heat, boost, and serious power.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"739\" data-start=\"345\"\u003eThe S58 is one of BMW’s most capable modern engines, but the factory downpipes are a major restriction once boost is turned up. Our MaxFlow downpipes for the G8X M3, G8X M4, and G87 M2 are engineered to eliminate that bottleneck—unlocking faster turbo response, stronger midrange torque, and a sharper, more aggressive exhaust character while maintaining reliability under extreme thermal load.\u003c\/p\u003e\n\u003ch2 data-end=\"779\" data-start=\"746\"\u003e3.5'' Maxflow Downpipes w\/ Heat Shields\u003c\/h2\u003e\n\u003cp data-end=\"1216\" data-start=\"781\"\u003eThese downpipes are designed around a \u003cstrong data-end=\"862\" data-start=\"819\"\u003etrue 3.5-inch maximum-flow architecture\u003c\/strong\u003e, optimized specifically for the high-output, twin-turbo S58 platform. By dramatically reducing exhaust restriction directly after the turbochargers, the system allows exhaust gases to evacuate faster and more efficiently, which improves turbo spool, reduces exhaust gas temperatures, and delivers a noticeable increase in power throughout the rev range.\u003c\/p\u003e\n\u003cp data-end=\"1637\" data-start=\"1218\"\u003eTo manage the intense heat generated by the S58 under load, each downpipe is fully wrapped in \u003cstrong data-end=\"1339\" data-start=\"1312\"\u003eintegrated heat shields\u003c\/strong\u003e. This design helps contain radiant heat within the exhaust path, protecting surrounding engine bay components while maintaining consistent exhaust velocity. The result is not only better performance, but also improved thermal stability during hard driving, track use, or repeated high-boost pulls.\u003c\/p\u003e\n\u003cp data-end=\"2036\" data-start=\"1639\"\u003eEvery unit is constructed from \u003cstrong data-end=\"1714\" data-start=\"1670\"\u003eaerospace-grade AISI 304 stainless steel\u003c\/strong\u003e, chosen for its excellent resistance to corrosion, fatigue, and extreme heat cycles. The piping is precision-formed with smooth internal transitions to maintain laminar flow and avoid turbulence that can disrupt exhaust efficiency. All joints are hand TIG-welded to ensure strength, durability, and long-term reliability.\u003c\/p\u003e\n\u003cp data-end=\"2202\" data-start=\"2038\"\u003eThese downpipes are designed as a direct bolt-on upgrade using factory mounting points, making installation straightforward with no cutting or fabrication required.\u003c\/p\u003e\n\u003cp data-end=\"2395\" data-start=\"2204\"\u003e\u003cstrong data-end=\"2242\" data-start=\"2204\"\u003eECU tuning is strongly recommended\u003c\/strong\u003e to fully take advantage of the increased flow and to manage catalyst efficiency monitoring. This product is intended for \u003cstrong data-end=\"2394\" data-start=\"2364\"\u003eoff-road or track use only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-end=\"2400\" data-start=\"2397\"\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/z-hKM0vzHqk?si=G6TNwximFF0xu5fT\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2423\" data-start=\"2402\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cp data-end=\"2442\" data-start=\"2425\"\u003e\u003cstrong data-end=\"2442\" data-start=\"2425\"\u003eConfiguration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2571\" data-start=\"2443\"\u003e\n\u003cli data-end=\"2495\" data-start=\"2443\"\u003e\n\u003cp data-end=\"2495\" data-start=\"2445\"\u003eHigh-flow performance downpipes for BMW S58 engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2525\" data-start=\"2496\"\u003e\n\u003cp data-end=\"2525\" data-start=\"2498\"\u003e\u003cstrong data-end=\"2525\" data-start=\"2498\"\u003e3.5-inch MaxFlow design\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2571\" data-start=\"2526\"\u003e\n\u003cp data-end=\"2571\" data-start=\"2528\"\u003eOptimized for twin-turbo exhaust evacuation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2601\" data-start=\"2573\"\u003e\u003cstrong data-end=\"2601\" data-start=\"2573\"\u003eMaterials \u0026amp; Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2768\" data-start=\"2602\"\u003e\n\u003cli data-end=\"2648\" data-start=\"2602\"\u003e\n\u003cp data-end=\"2648\" data-start=\"2604\"\u003eAerospace-grade \u003cstrong data-end=\"2648\" data-start=\"2620\"\u003eAISI 304 Stainless Steel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2692\" data-start=\"2649\"\u003e\n\u003cp data-end=\"2692\" data-start=\"2651\"\u003eFully integrated \u003cstrong data-end=\"2692\" data-start=\"2668\"\u003eheat shield wrapping\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2723\" data-start=\"2693\"\u003e\n\u003cp data-end=\"2723\" data-start=\"2695\"\u003eHand TIG-welded construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2768\" data-start=\"2724\"\u003e\n\u003cp data-end=\"2768\" data-start=\"2726\"\u003eSmooth, high-precision internal flow paths\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2794\" data-start=\"2770\"\u003e\u003cstrong data-end=\"2794\" data-start=\"2770\"\u003ePerformance Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2915\" data-start=\"2795\"\u003e\n\u003cli data-end=\"2815\" data-start=\"2795\"\u003e\n\u003cp data-end=\"2815\" data-start=\"2797\"\u003eFaster turbo spool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2867\" data-start=\"2816\"\u003e\n\u003cp data-end=\"2867\" data-start=\"2818\"\u003eReduced backpressure and exhaust gas temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2915\" data-start=\"2868\"\u003e\n\u003cp data-end=\"2915\" data-start=\"2870\"\u003eImproved throttle response and power delivery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2933\" data-start=\"2917\"\u003e\u003cstrong data-end=\"2933\" data-start=\"2917\"\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"3026\" data-start=\"2934\"\u003e\n\u003cli data-end=\"2955\" data-start=\"2934\"\u003e\n\u003cp data-end=\"2955\" data-start=\"2936\"\u003e100% bolt-on design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2993\" data-start=\"2956\"\u003e\n\u003cp data-end=\"2993\" data-start=\"2958\"\u003eUtilizes factory mounting locations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3026\" data-start=\"2994\"\u003e\n\u003cp data-end=\"3026\" data-start=\"2996\"\u003eNo cutting or welding required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3031\" data-start=\"3028\"\u003e\n\u003ch2 data-end=\"3051\" data-start=\"3033\"\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cul data-end=\"3157\" data-start=\"3053\"\u003e\n\u003cli data-end=\"3071\" data-start=\"3053\"\u003e\n\u003cp data-end=\"3071\" data-start=\"3055\"\u003e\u003cstrong data-end=\"3069\" data-start=\"3055\"\u003eBMW G80 M3\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3096\" data-start=\"3072\"\u003e\n\u003cp data-end=\"3096\" data-start=\"3074\"\u003e\u003cstrong data-end=\"3094\" data-start=\"3074\"\u003eBMW G82 \/ G83 M4\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3115\" data-start=\"3097\"\u003e\n\u003cp data-end=\"3115\" data-start=\"3099\"\u003e\u003cstrong data-end=\"3113\" data-start=\"3099\"\u003eBMW G87 M2\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3157\" data-start=\"3116\"\u003e\n\u003cp data-end=\"3157\" data-start=\"3118\"\u003eEngine: \u003cstrong data-end=\"3157\" data-start=\"3126\"\u003eBMW S58 Twin-Turbo Inline-6\u003c\/strong\u003e\u003cstrong data-end=\"3157\" data-start=\"3126\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"3520\" data-start=\"3502\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cul data-end=\"3705\" data-start=\"3522\"\u003e\n\u003cli data-end=\"3626\" data-start=\"3522\"\u003e\n\u003cp data-end=\"3626\" data-start=\"3524\"\u003e\u003cstrong data-end=\"3550\" data-start=\"3524\"\u003eECU tuning is required\u003c\/strong\u003e to prevent check engine lights and to fully utilize the increased airflow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3664\" data-start=\"3627\"\u003e\n\u003cp data-end=\"3664\" data-start=\"3629\"\u003e\u003cstrong data-end=\"3662\" data-start=\"3629\"\u003eFor off-road \/ track use only\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3705\" data-start=\"3665\"\u003e\n\u003cp data-end=\"3705\" data-start=\"3667\"\u003eNot emissions compliant for street use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yonristic Performance","offers":[{"title":"Default Title","offer_id":42449491984455,"sku":"YR-2915-S58","price":579.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/3680\/3143\/files\/280_20c3256f-1daf-4601-b31e-c25bb356f7ca.jpg?v=1769811167"},{"product_id":"bmw-g8x-m3-m4-vanta-gold™-exhaust-system-yonristic-performance","title":"BMW G8x M3\/ M4 VANTA GOLD™ Exhaust System - Yonristic Performance","description":"\u003ch1 data-end=\"744\" data-start=\"695\"\u003e\u003cstrong data-end=\"742\" data-start=\"697\"\u003eBMW G8X M3 \/ M4 VANTA GOLD™ Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003e\u003cstrong data-end=\"770\" data-start=\"745\"\u003eYonristic Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003eThe VANTA GOLD Exhaust System for the BMW G8X M3 and M4 represents the most advanced exhaust architecture developed by Yonristic Performance to date. Inspired by our VANTA Edition GTS-style design philosophy, VANTA GOLD is engineered to deliver a supercar-inspired, exotic sound character while maintaining the refinement, control, and usability expected from a modern M platform. At its core is the AURUM FLOW CORE™, a proprietary 3D-printed, gold heat-treated convergence module designed to manage airflow and sound with precision. The result is an exhaust system that evolves naturally with engine speed—deep and composed at low RPM, clean and tightly controlled at high RPM, and unmistakably aggressive when fully opened.\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003eCatback System Only:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/JyJM9_A1THU?si=zMchqist_4YmiDFX\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/EMwrkzEj_DY?si=rsLm5PYVaboQCA02\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003eCatback System + Free Flow Downpipes:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/NkRf0O_s3tI?si=i9SG10NpW-_hLEhw\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/pkIurQOz2Pk?si=mXpZR6CVGYK1QHb9\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/EBbjA8iYow4?si=NotO5AEJJa6CIuru\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 data-start=\"1531\" data-end=\"1564\"\u003e\u003cstrong data-start=\"1534\" data-end=\"1564\"\u003eExhaust System Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1566\" data-end=\"2281\"\u003eDeveloped specifically for the S58 engine, the VANTA GOLD Exhaust System focuses on improving exhaust flow quality, acoustic stability, and long-term thermal consistency rather than pursuing volume alone. The system replaces conventional crossover solutions with a completely re-engineered center architecture built around the \u003cstrong data-start=\"1893\" data-end=\"1913\"\u003eAURUM FLOW CORE™\u003c\/strong\u003e, a fully 3D-printed exhaust convergence module designed to align and equalize exhaust pulses from both banks through sculpted internal flow paths. Unlike traditional X-pipes or balance pipes that rely on abrupt gas collision, the AURUM FLOW CORE™ guides exhaust flow progressively, reducing turbulence and pressure fluctuation while maintaining high exhaust velocity.\u003c\/p\u003e\n\u003cp data-start=\"2283\" data-end=\"2822\"\u003eManufactured using high-strength aerospace-grade 3D printing material, the core enables internal geometries that are not achievable through conventional fabrication methods. Once formed, it is treated with a gold heat-resistant carbon-ceramic coating selected for its ability to withstand sustained thermal load while maintaining predictable acoustic behavior over repeated heat cycles. This treatment stabilizes both airflow and sound under high RPM and sustained boost, ensuring consistent performance and tone during aggressive driving.\u003c\/p\u003e\n\u003cp data-start=\"2824\" data-end=\"3604\"\u003eFrom an acoustic perspective, VANTA GOLD delivers a \u003cstrong data-start=\"2876\" data-end=\"2910\"\u003esupercar-inspired, exotic tone\u003c\/strong\u003e that remains structured across the entire rev range. The system produces a deep, authoritative character at low engine speeds, transitioning smoothly into a clean, sharp, and composed sound as RPM increases. Rather than allowing harmonics to scatter or break apart at high load, the AURUM FLOW CORE™ tightens the exhaust note and holds it together, preventing rasp and unwanted frequency spikes. Functionally, it operates as more than a traditional X-pipe or resonator, combining pulse equalization, harmonic stabilization, and flow optimization into a single engineered solution. For the S58 platform, this represents the most complete and technically sound approach to exhaust sound control.\u003c\/p\u003e\n\u003cp data-start=\"3606\" data-end=\"4322\"\u003eDownstream, the rear valved section is designed for seamless integration with the vehicle’s exhaust control system. The valves can be operated through the factory drive modes or via an optional remote valve control module, depending on driver preference. In closed-valve operation, the exhaust maintains a calm, refined character suitable for daily driving and long-distance use. With the valves open, the flow path becomes more direct, delivering sharper throttle response and a more pronounced performance sound without sacrificing composure. Every component is precision-built with careful attention to alignment, fitment, and finish, ensuring consistent performance, clean installation, and long-term durability.\u003c\/p\u003e\n\u003chr data-start=\"4324\" data-end=\"4327\"\u003e\n\u003ch2 data-start=\"4329\" data-end=\"4357\"\u003e\u003cstrong data-start=\"4332\" data-end=\"4357\"\u003eSound Characteristics\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"4359\" data-end=\"4589\"\u003e\n\u003cli data-start=\"4359\" data-end=\"4400\"\u003e\n\u003cp data-start=\"4361\" data-end=\"4400\"\u003eDeep and composed at idle and low RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4401\" data-end=\"4443\"\u003e\n\u003cp data-start=\"4403\" data-end=\"4443\"\u003eSmooth, aggressive mid-range character\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4444\" data-end=\"4499\"\u003e\n\u003cp data-start=\"4446\" data-end=\"4499\"\u003eClean, exotic, tightly controlled sound at high RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4500\" data-end=\"4540\"\u003e\n\u003cp data-start=\"4502\" data-end=\"4540\"\u003eNo metallic rasp or harmonic breakup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4541\" data-end=\"4589\"\u003e\n\u003cp data-start=\"4543\" data-end=\"4589\"\u003eRefined cruising behavior with valves closed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4591\" data-end=\"4594\"\u003e\n\u003ch2 data-start=\"4596\" data-end=\"4649\"\u003e\u003cstrong data-start=\"4599\" data-end=\"4649\"\u003ePerformance Gains (Real-World Planning Ranges)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"4651\" data-end=\"4820\"\u003eBy reducing restriction and improving exhaust flow efficiency, the VANTA GOLD Exhaust System provides measurable performance improvements even in cat-back configuration.\u003c\/p\u003e\n\u003cp data-start=\"4822\" data-end=\"4877\"\u003e\u003cstrong data-start=\"4822\" data-end=\"4875\"\u003eEstimated Gains (Cat-Back \/ Valved Section Only):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4878\" data-end=\"4936\"\u003e\n\u003cli data-start=\"4878\" data-end=\"4907\"\u003e\n\u003cp data-start=\"4880\" data-end=\"4907\"\u003e\u003cstrong data-start=\"4880\" data-end=\"4895\"\u003eHorsepower:\u003c\/strong\u003e +18–22 HP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4908\" data-end=\"4936\"\u003e\n\u003cp data-start=\"4910\" data-end=\"4936\"\u003e\u003cstrong data-start=\"4910\" data-end=\"4921\"\u003eTorque:\u003c\/strong\u003e +15–25 lb-ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4938\" data-end=\"5235\"\u003eFor track-focused builds, the system can be paired with \u003cstrong data-start=\"4994\" data-end=\"5071\"\u003eYonristic Performance 3.5” MaxFlow Downpipes with integrated heat shields\u003c\/strong\u003e (track use only). When combined with appropriate ECU calibration, significantly higher gains are achievable depending on fuel quality and supporting modifications.\u003c\/p\u003e\n\u003cp data-start=\"5237\" data-end=\"5360\"\u003e\u003cem data-start=\"5237\" data-end=\"5360\"\u003e(Performance figures are realistic planning ranges. Actual results vary by tune, dyno type, fuel, and vehicle condition.)\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-start=\"5362\" data-end=\"5365\"\u003e\n\u003ch2 data-start=\"5367\" data-end=\"5392\"\u003e\u003cstrong data-start=\"5370\" data-end=\"5392\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"5394\" data-end=\"5935\"\u003e\n\u003cli data-start=\"5394\" data-end=\"5445\"\u003e\n\u003cp data-start=\"5396\" data-end=\"5445\"\u003e\u003cstrong data-start=\"5396\" data-end=\"5412\"\u003eSystem Type:\u003c\/strong\u003e Valved cat-back exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5446\" data-end=\"5521\"\u003e\n\u003cp data-start=\"5448\" data-end=\"5521\"\u003e\u003cstrong data-start=\"5448\" data-end=\"5470\"\u003eCenter Technology:\u003c\/strong\u003e AURUM FLOW CORE™ (3D-printed convergence module)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5522\" data-end=\"5583\"\u003e\n\u003cp data-start=\"5524\" data-end=\"5583\"\u003e\u003cstrong data-start=\"5524\" data-end=\"5536\"\u003eCoating:\u003c\/strong\u003e Gold heat-resistant carbon-ceramic treatment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5584\" data-end=\"5672\"\u003e\n\u003cp data-start=\"5586\" data-end=\"5672\"\u003e\u003cstrong data-start=\"5586\" data-end=\"5604\"\u003eValve Control:\u003c\/strong\u003e OEM integration retained; optional remote valve control supported\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5673\" data-end=\"5758\"\u003e\n\u003cp data-start=\"5675\" data-end=\"5758\"\u003e\u003cstrong data-start=\"5675\" data-end=\"5697\"\u003eDesign Philosophy:\u003c\/strong\u003e VANTA Edition GTS-inspired layout for exotic sound control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5759\" data-end=\"5836\"\u003e\n\u003cp data-start=\"5761\" data-end=\"5836\"\u003e\u003cstrong data-start=\"5761\" data-end=\"5778\"\u003eConstruction:\u003c\/strong\u003e Precision TIG-welded, high-quality materials throughout\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5837\" data-end=\"5935\"\u003e\n\u003cp data-start=\"5839\" data-end=\"5935\"\u003e\u003cstrong data-start=\"5839\" data-end=\"5856\"\u003eInstallation:\u003c\/strong\u003e Direct bolt-on using factory mounting points; no cutting or welding required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"5937\" data-end=\"5940\"\u003e\n\u003ch2 data-start=\"5942\" data-end=\"5964\"\u003e\u003cstrong data-start=\"5945\" data-end=\"5964\"\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"5966\" data-end=\"6028\"\u003e\n\u003cli data-start=\"5966\" data-end=\"5980\"\u003e\n\u003cp data-start=\"5968\" data-end=\"5980\"\u003eBMW G80 M3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"5981\" data-end=\"6001\"\u003e\n\u003cp data-start=\"5983\" data-end=\"6001\"\u003eBMW G82 M4 Coupe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"6002\" data-end=\"6028\"\u003e\n\u003cp data-start=\"6004\" data-end=\"6028\"\u003eBMW G83 M4 Convertible\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"6030\" data-end=\"6051\"\u003e(S58 engine platform)\u003c\/p\u003e\n\u003chr data-start=\"6053\" data-end=\"6056\"\u003e\n\u003ch2 data-start=\"6058\" data-end=\"6097\"\u003e\u003cstrong data-start=\"6061\" data-end=\"6097\"\u003eCompatibility \u0026amp; Related Products\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"6099\" data-end=\"6282\"\u003eThe VANTA GOLD Exhaust System is compatible with \u003cstrong data-start=\"6148\" data-end=\"6214\"\u003eYonristic Performance 3.5” MaxFlow Downpipes with Heat Shields\u003c\/strong\u003e for track-oriented builds (track use only; ECU tuning recommended).\u003c\/p\u003e\n\u003cp data-start=\"6284\" data-end=\"6516\"\u003eFor customers seeking our standard VANTA Edition exhaust for the G8X platform, please visit:\u003cbr data-start=\"6376\" data-end=\"6379\"\u003e👉 \u003ca data-start=\"6382\" data-end=\"6516\" rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/yonristic.com\/collections\/m4-yonristic-performance\/products\/bmw-g8x-m3-m4-vanta-edition-exhaust-system-yonristic-performance-1\"\u003ehttps:\/\/yonristic.com\/collections\/m4-yonristic-performance\/products\/bmw-g8x-m3-m4-vanta-edition-exhaust-system-yonristic-performance-1\u003cspan aria-hidden=\"true\" class=\"ms-0.5 inline-block align-middle leading-none\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"block h-[0.75em] w-[0.75em] stroke-current stroke-[0.75]\"\u003e\u003cuse fill=\"currentColor\" href=\"\/cdn\/assets\/sprites-core-c9exbsc1.svg#304883\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-start=\"6568\" data-end=\"7139\"\u003e \u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":42451209781319,"sku":"YR-0073-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":42451209814087,"sku":"YR-4243-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":42451209846855,"sku":"YR-9543-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ 4AL-6V Titanium \/ (4) Chrome","offer_id":42451209912391,"sku":"YR-0470-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ 4AL-6V Titanium \/ (4) Gold","offer_id":42451209945159,"sku":"YR-6392-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ 4AL-6V Titanium \/ (4) Carbon Fiber","offer_id":42451209977927,"sku":"YR-0763-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":42451210043463,"sku":"YR-4533-BMW-CAT","price":3999.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":42451210076231,"sku":"YR-6390-BMW-CAT","price":3999.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":42451210108999,"sku":"YR-2348-BMW-CAT","price":3999.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ 4AL-6V Titanium \/ (4) Chrome","offer_id":42451210174535,"sku":"YR-8463-BMW-CAT","price":4899.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ 4AL-6V Titanium \/ (4) Gold","offer_id":42451210207303,"sku":"YR-7062-BMW-CAT","price":4899.0,"currency_code":"USD","in_stock":true},{"title":"Catback + Free Flow Downpipe \/ 4AL-6V Titanium \/ (4) Carbon Fiber","offer_id":42451210240071,"sku":"YR-9434-BMW-CAT","price":4899.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":42451210305607,"sku":"YR-5540-BMW-CAT","price":4299.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":42451210338375,"sku":"YR-5911-BMW-CAT","price":4299.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":42451210371143,"sku":"YR-5909-BMW-CAT","price":4299.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ 4AL-6V Titanium \/ (4) Chrome","offer_id":42451210436679,"sku":"YR-6566-BMW-CAT","price":5199.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ 4AL-6V Titanium \/ (4) Gold","offer_id":42451210469447,"sku":"YR-3069-BMW-CAT","price":5199.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (200 Cell) \/ 4AL-6V Titanium \/ (4) Carbon Fiber","offer_id":42451210502215,"sku":"YR-7076-BMW-CAT","price":5199.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":42709792227399,"sku":"YR-0188-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":42709792260167,"sku":"YR-6894-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":42709792325703,"sku":"YR-4701-BMW-CAT","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ 4AL-6V Titanium \/ (4) Chrome","offer_id":42709792391239,"sku":"YR-1388-BMW-CAT","price":5399.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ 4AL-6V Titanium \/ (4) Gold","offer_id":42709792424007,"sku":"YR-4920-BMW-CAT","price":5399.0,"currency_code":"USD","in_stock":true},{"title":"Catback + High Flow Downpipe (400 Cell) \/ 4AL-6V Titanium \/ (4) Carbon Fiber","offer_id":42709792489543,"sku":"YR-3953-BMW-CAT","price":5399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/3680\/3143\/files\/G8XVANTAGOLD.jpg?v=1769929406"},{"product_id":"bmw-g8x-m3-m4-vanta-gold™-midpipe-yonristic-performance","title":"BMW G8X M3 M4 VANTA GOLD™ Midpipe - Yonristic Performance","description":"\u003ch1 data-start=\"695\" data-end=\"744\"\u003e\u003cstrong data-start=\"697\" data-end=\"742\"\u003eBMW G80 M3 M4 VANTA GOLD™ Midpipe\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp data-start=\"745\" data-end=\"770\"\u003e\u003cstrong data-start=\"745\" data-end=\"770\"\u003eYonristic Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"292\" data-start=\"250\" data-section-id=\"1efz9ik\"\u003eThe Missing Piece That Unlocks the S58\u003c\/h3\u003e\n\u003cp data-end=\"693\" data-start=\"294\"\u003eThe VANTA GOLD™ Midpipe for the BMW G8X M3 and M4 is the core of the system’s transformation, engineered around our most advanced flow architecture to redefine how the S58 engine breathes and sounds. At the center is the \u003cstrong data-end=\"458\" data-start=\"438\"\u003eAURUM FLOW CORE™\u003c\/strong\u003e, a precision-engineered convergence module designed to control exhaust pulses with far greater accuracy than traditional crossover designs. This is not simply a midpipe upgrade, it is the foundation that unlocks a sharper, cleaner, and more exotic sound profile while improving overall flow stability. The result is a system that feels tighter, more responsive, and far more refined across the entire rev range.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/NkRf0O_s3tI?si=84s8mnZEJ28hxfTx\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e \u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/JyJM9_A1THU?si=fS-QySAxMIOi2jdH\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e \u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/EMwrkzEj_DY?si=2l7nrb26xS-xJ8oY\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/EBbjA8iYow4?si=8tl3LAEZf6nP9VTx\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/pkIurQOz2Pk?si=mXpZR6CVGYK1QHb9\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"1226\" data-start=\"903\"\u003eThe factory mid-section of the G8X platform prioritizes emissions control and noise suppression, which results in a muted and somewhat restricted exhaust character. The VANTA GOLD™ Midpipe replaces this with a completely re-engineered architecture focused on \u003cstrong data-end=\"1225\" data-start=\"1162\"\u003eflow efficiency, acoustic clarity, and structural precision\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1716\" data-start=\"1228\"\u003eAt its core, the system integrates the \u003cstrong data-end=\"1287\" data-start=\"1267\"\u003eAURUM FLOW CORE™\u003c\/strong\u003e, a proprietary crossover module that manages how exhaust pulses from both banks merge and interact. Unlike conventional X-pipes that simply intersect flow paths, the AURUM design actively \u003cstrong data-end=\"1527\" data-start=\"1476\"\u003econtrols pressure equalization and pulse timing\u003c\/strong\u003e, allowing exhaust gases to transition smoothly while maintaining velocity. This reduces turbulence and prevents the chaotic resonance patterns that often create rasp or unwanted harshness.\u003c\/p\u003e\n\u003cp data-end=\"2131\" data-start=\"1718\"\u003eThe result is a significantly more stable exhaust stream, which translates directly into both performance and sound. Throttle response becomes sharper as backpressure is reduced, while the sound evolves into a more defined and controlled tone. At lower RPM, the system delivers a deeper, more composed presence. As revs climb, the exhaust note tightens and develops a clean, exotic edge without losing refinement.\u003c\/p\u003e\n\u003cp data-end=\"2457\" data-start=\"2133\"\u003eThe midpipe maintains a \u003cstrong data-end=\"2193\" data-start=\"2157\"\u003etrue constant-diameter flow path\u003c\/strong\u003e, ensuring that exhaust gases are not compressed or disrupted as they travel through the system. This consistency is critical for maintaining both performance and acoustic balance, especially at higher engine loads where factory systems tend to become restrictive.\u003c\/p\u003e\n\u003cp data-end=\"2837\" data-start=\"2459\"\u003eEvery component is developed using detailed 3D scan data of the G8X chassis to ensure precise fitment and optimal routing. Mandrel-bent tubing preserves internal diameter through every curve, while all welds are hand-finished using TIG processes for both strength and visual quality. The system installs as a \u003cstrong data-end=\"2798\" data-start=\"2768\"\u003edirect bolt-on replacement\u003c\/strong\u003e, requiring no cutting or modification.\u003c\/p\u003e\n\u003cp data-end=\"3069\" data-start=\"2839\"\u003eAvailable in both \u003cstrong data-end=\"2885\" data-start=\"2857\"\u003eAISI 304 stainless steel\u003c\/strong\u003e and \u003cstrong data-end=\"2912\" data-start=\"2890\"\u003eTi-6Al-4V titanium\u003c\/strong\u003e, the VANTA GOLD™ Midpipe offers a choice between durability and weight reduction, with titanium delivering a sharper and more responsive acoustic character.\u003c\/p\u003e\n\u003chr data-end=\"3074\" data-start=\"3071\"\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eBMW G8X M3 M4 Midpipe: Unleash Performance and Style\u003c\/h2\u003e\n\u003ch3 data-end=\"3120\" data-start=\"3101\" data-section-id=\"1w3rbhy\"\u003eConfiguration\u003c\/h3\u003e\n\u003cul data-end=\"3259\" data-start=\"3121\"\u003e\n\u003cli data-end=\"3176\" data-start=\"3121\" data-section-id=\"1bika46\"\u003eVANTA GOLD™ AURUM FLOW CORE™ crossover architecture\u003c\/li\u003e\n\u003cli data-end=\"3218\" data-start=\"3177\" data-section-id=\"18rlnuc\"\u003eTrue constant-diameter midpipe design\u003c\/li\u003e\n\u003cli data-end=\"3259\" data-start=\"3219\" data-section-id=\"c546rd\"\u003ePrecision pulse-balanced flow system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"4596\" data-end=\"4649\"\u003e\u003cstrong data-start=\"4599\" data-end=\"4649\"\u003ePerformance Gains (Real-World Planning Ranges)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3447\" data-end=\"3578\"\u003eBy removing restriction from the mid-section and improving flow dynamics, the system enhances engine efficiency and responsiveness.\u003c\/p\u003e\n\u003cp data-start=\"3580\" data-end=\"3599\"\u003e\u003cstrong data-start=\"3580\" data-end=\"3599\"\u003eEstimated Gains\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3601\" data-end=\"3638\"\u003e+12 – 18 HP\u003cbr data-start=\"3612\" data-end=\"3615\"\u003e+10 – 15 lb-ft Torque\u003c\/p\u003e\n\u003cp data-start=\"3640\" data-end=\"3725\"\u003ePerformance gains increase further when paired with a full exhaust system and tuning.\u003c\/p\u003e\n\u003cp data-start=\"4938\" data-end=\"5235\"\u003eFor track-focused builds, the system can be paired with \u003ca href=\"https:\/\/yonristic.com\/collections\/m2-yonristic-performance\/products\/s58-3-5-maxflow-downpipes-w-heatshield-for-g8x-m3-m4-g87-m2-yonristic-performance\"\u003e\u003cstrong data-start=\"4994\" data-end=\"5071\"\u003eYonristic Performance 3.5” MaxFlow Downpipes with integrated heat shields\u003c\/strong\u003e\u003c\/a\u003e (track use only). When combined with appropriate ECU calibration, significantly higher gains are achievable depending on fuel quality and supporting modifications.\u003c\/p\u003e\n\u003cp data-start=\"5237\" data-end=\"5360\"\u003e\u003cem data-start=\"5237\" data-end=\"5360\"\u003e(Performance figures are realistic planning ranges. Actual results vary by tune, dyno type, fuel, and vehicle condition.)\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"3411\" data-start=\"3396\" data-section-id=\"qnl75q\"\u003eMaterials\u003c\/h3\u003e\n\u003cul data-end=\"3632\" data-start=\"3412\"\u003e\n\u003cli data-end=\"3480\" data-start=\"3412\" data-section-id=\"1bbufr8\"\u003eAISI 304 Stainless Steel for durability and corrosion resistance\u003c\/li\u003e\n\u003cli data-end=\"3554\" data-start=\"3481\" data-section-id=\"18rswyt\"\u003eTi-6Al-4V Titanium for lightweight performance and enhanced acoustics\u003c\/li\u003e\n\u003cli data-end=\"3587\" data-start=\"3555\" data-section-id=\"exafi2\"\u003eHand TIG-welded construction\u003c\/li\u003e\n\u003cli data-end=\"3632\" data-start=\"3588\" data-section-id=\"152lsmf\"\u003eCNC-machined flanges and mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"3652\" data-start=\"3634\" data-section-id=\"1snvj7e\"\u003eInstallation\u003c\/h3\u003e\n\u003cul data-end=\"3767\" data-start=\"3653\"\u003e\n\u003cli data-end=\"3702\" data-start=\"3653\" data-section-id=\"1ld1ojg\"\u003eDesigned using 3D scan data for exact fitment\u003c\/li\u003e\n\u003cli data-end=\"3732\" data-start=\"3703\" data-section-id=\"1mht7tl\"\u003e100% bolt-on installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1226\" data-start=\"903\"\u003eThe factory mid-section of the G8X platform prioritizes emissions control and noise suppression, which results in a muted and somewhat restricted exhaust character. The VANTA GOLD™ Midpipe replaces this with a completely re-engineered architecture focused on \u003cstrong data-end=\"1225\" data-start=\"1162\"\u003eflow efficiency, acoustic clarity, and structural precision\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1716\" data-start=\"1228\"\u003eAt its core, the system integrates the \u003cstrong data-end=\"1287\" data-start=\"1267\"\u003eAURUM FLOW CORE™\u003c\/strong\u003e, a proprietary crossover module that manages how exhaust pulses from both banks merge and interact. Unlike conventional X-pipes that simply intersect flow paths, the AURUM design actively \u003cstrong data-end=\"1527\" data-start=\"1476\"\u003econtrols pressure equalization and pulse timing\u003c\/strong\u003e, allowing exhaust gases to transition smoothly while maintaining velocity. This reduces turbulence and prevents the chaotic resonance patterns that often create rasp or unwanted harshness.\u003c\/p\u003e\n\u003cp data-end=\"2131\" data-start=\"1718\"\u003eThe result is a significantly more stable exhaust stream, which translates directly into both performance and sound. Throttle response becomes sharper as backpressure is reduced, while the sound evolves into a more defined and controlled tone. At lower RPM, the system delivers a deeper, more composed presence. As revs climb, the exhaust note tightens and develops a clean, exotic edge without losing refinement.\u003c\/p\u003e\n\u003cp data-end=\"2457\" data-start=\"2133\"\u003eThe midpipe maintains a \u003cstrong data-end=\"2193\" data-start=\"2157\"\u003etrue constant-diameter flow path\u003c\/strong\u003e, ensuring that exhaust gases are not compressed or disrupted as they travel through the system. This consistency is critical for maintaining both performance and acoustic balance, especially at higher engine loads where factory systems tend to become restrictive.\u003c\/p\u003e\n\u003cp data-end=\"2837\" data-start=\"2459\"\u003eEvery component is developed using detailed 3D scan data of the G8X chassis to ensure precise fitment and optimal routing. Mandrel-bent tubing preserves internal diameter through every curve, while all welds are hand-finished using TIG processes for both strength and visual quality. The system installs as a \u003cstrong data-end=\"2798\" data-start=\"2768\"\u003edirect bolt-on replacement\u003c\/strong\u003e, requiring no cutting or modification.\u003c\/p\u003e\n\u003cp data-end=\"3069\" data-start=\"2839\"\u003eAvailable in both \u003cstrong data-end=\"2885\" data-start=\"2857\"\u003eAISI 304 stainless steel\u003c\/strong\u003e and \u003cstrong data-end=\"2912\" data-start=\"2890\"\u003eTi-6Al-4V titanium\u003c\/strong\u003e, the VANTA GOLD™ Midpipe offers a choice between durability and weight reduction, with titanium delivering a sharper and more responsive acoustic character.\u003c\/p\u003e\n\u003chr data-end=\"3074\" data-start=\"3071\"\u003e\n\u003ch2 data-end=\"3099\" data-start=\"3076\" data-section-id=\"1ht2kho\"\u003eKey Specifications\u003c\/h2\u003e\n\u003ch3 data-end=\"3120\" data-start=\"3101\" data-section-id=\"1w3rbhy\"\u003eConfiguration\u003c\/h3\u003e\n\u003cul data-end=\"3259\" data-start=\"3121\"\u003e\n\u003cli data-end=\"3176\" data-start=\"3121\" data-section-id=\"1bika46\"\u003eVANTA GOLD™ AURUM FLOW CORE™ crossover architecture\u003c\/li\u003e\n\u003cli data-end=\"3218\" data-start=\"3177\" data-section-id=\"18rlnuc\"\u003eTrue constant-diameter midpipe design\u003c\/li\u003e\n\u003cli data-end=\"3259\" data-start=\"3219\" data-section-id=\"c546rd\"\u003ePrecision pulse-balanced flow system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"3278\" data-start=\"3261\" data-section-id=\"uuyzr2\"\u003ePerformance\u003c\/h3\u003e\n\u003cul data-end=\"3394\" data-start=\"3279\"\u003e\n\u003cli data-end=\"3311\" data-start=\"3279\" data-section-id=\"11yvtn9\"\u003eHorsepower Gain: ~ +15–22 HP\u003c\/li\u003e\n\u003cli data-end=\"3343\" data-start=\"3312\" data-section-id=\"1snelc6\"\u003eTorque Gain: ~ +12–18 lb-ft\u003c\/li\u003e\n\u003cli data-end=\"3394\" data-start=\"3344\" data-section-id=\"14c3lkj\"\u003eImproved throttle response and flow efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"3411\" data-start=\"3396\" data-section-id=\"qnl75q\"\u003eMaterials\u003c\/h3\u003e\n\u003cul data-end=\"3632\" data-start=\"3412\"\u003e\n\u003cli data-end=\"3480\" data-start=\"3412\" data-section-id=\"1bbufr8\"\u003eAISI 304 Stainless Steel for durability and corrosion resistance\u003c\/li\u003e\n\u003cli data-end=\"3554\" data-start=\"3481\" data-section-id=\"18rswyt\"\u003eTi-6Al-4V Titanium for lightweight performance and enhanced acoustics\u003c\/li\u003e\n\u003cli data-end=\"3587\" data-start=\"3555\" data-section-id=\"exafi2\"\u003eHand TIG-welded construction\u003c\/li\u003e\n\u003cli data-end=\"3632\" data-start=\"3588\" data-section-id=\"152lsmf\"\u003eCNC-machined flanges and mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"3652\" data-start=\"3634\" data-section-id=\"1snvj7e\"\u003eInstallation\u003c\/h3\u003e\n\u003cul data-end=\"3767\" data-start=\"3653\"\u003e\n\u003cli data-end=\"3702\" data-start=\"3653\" data-section-id=\"1ld1ojg\"\u003eDesigned using 3D scan data for exact fitment\u003c\/li\u003e\n\u003cli data-end=\"3732\" data-start=\"3703\" data-section-id=\"1mht7tl\"\u003e100% bolt-on installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eAdvanced Engineering for Ultimate Performance\u003c\/h3\u003e\n\u003cp\u003eThe BMW G8X M3 M4 midpipe by Yonristic Performance is engineered to maximize exhaust flow, enhancing your BMW’s horsepower and torque output. Designed specifically for the G8X chassis, this midpipe optimizes your car’s exhaust dynamics. Its precise fitment reduces backpressure, allowing the engine to breathe more efficiently, which improves throttle response and overall driving experience. Whether on the track or street, this midpipe delivers a noticeable increase in performance without compromising reliability, making it a perfect upgrade for enthusiasts seeking enhanced power.\u003c\/p\u003e\n\u003ch3\u003ePremium VANTA GOLD™ Finish for Unique Aesthetics\u003c\/h3\u003e\n\u003cp\u003eBeyond performance, the BMW G8X M3 M4 midpipe features a distinctive VANTA GOLD™ coating that provides a sleek, eye-catching appearance. This finish not only elevates your vehicle’s style but also offers resistance to corrosion and heat, ensuring durability under demanding conditions. The VANTA GOLD™ treatment creates a signature look that sets your BMW apart from standard exhaust systems. This midpipe combines both function and aesthetics, delivering a product that meets high-performance standards while complementing your car’s aggressive design language.\u003c\/p\u003e\n\u003ch3\u003eEasy Installation and Superior Build Quality\u003c\/h3\u003e\n\u003cp\u003eManufactured with high-grade stainless steel and precision welding, Yonristic Performance’s BMW G8X M3 M4 midpipe ensures long-lasting strength and durability. The direct bolt-on design allows for a straightforward installation process, requiring no complex modifications, making it accessible for both professional shops and skilled DIYers. The midpipe’s robust construction can withstand high temperatures and regular driving stresses, guaranteeing a reliable upgrade. This commitment to quality assures owners a product that maintains performance and appearance throughout its lifespan.\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"AISI304 Stainless Steel","offer_id":42644693745735,"sku":"YR-7752-BMW-AIS","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium","offer_id":42644693778503,"sku":"YR-0518-BMW-4AL","price":2599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/3680\/3143\/files\/G8XVANTAGOLD_6_7971fc1b-cffb-40a0-bfd9-6ccaaf8b4ef0.jpg?v=1774646869"},{"product_id":"bmw-g8x-m3-m4-vanta-gold™-m-performance-style-exhaust-yonristic-performance","title":"BMW G8x M3\/ M4 VANTA GOLD™ M-Performance Style Center Exhaust - Yonristic Performance","description":"\u003ch1 data-end=\"744\" data-start=\"695\"\u003e\u003cstrong data-end=\"742\" data-start=\"697\"\u003eBMW G8X M3 \/ M4 VANTA GOLD™ Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003e\u003cstrong data-end=\"770\" data-start=\"745\"\u003eYonristic Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe VANTA GOLD™ Center Exit Exhaust System for the BMW G8X M3 and M4 brings the most advanced Yonristic Performance exhaust architecture into a more aggressive, M-Performance-style center exit layout. Built around the same VANTA GOLD™ sound philosophy and AURUM FLOW CORE™ technology used in our standard G8X VANTA GOLD™ system, this version is engineered for drivers who want the exotic S58 sound profile with a more distinctive rear-end presence. The result is a system that combines supercar-inspired tone, controlled sound structure, and a center-exit visual identity designed to transform the character of the G8X platform. The standard G8X VANTA GOLD™ page identifies the system as an AURUM FLOW CORE™ exhaust and lists stainless steel, titanium, and downpipe configuration options for the platform.\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003eCatback System Only:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/JyJM9_A1THU?si=zMchqist_4YmiDFX\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/EMwrkzEj_DY?si=rsLm5PYVaboQCA02\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp data-end=\"770\" data-start=\"745\"\u003eCatback System + Free Flow Downpipes:\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/NkRf0O_s3tI?si=i9SG10NpW-_hLEhw\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/pkIurQOz2Pk?si=mXpZR6CVGYK1QHb9\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/EBbjA8iYow4?si=NotO5AEJJa6CIuru\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 id=\"tinymce_scroll_sign\"\u003eBMW G8X M3 M4 Exhaust System: Ultimate Performance Upgrade\u003c\/h2\u003e\n\u003cp data-start=\"1038\" data-end=\"1556\"\u003eDeveloped specifically for the BMW G80 M3, G82 M4, and G83 M4, the VANTA GOLD™ Center Exit Exhaust System is designed to deliver the same acoustic control and flow quality as our regular VANTA GOLD™ system, while introducing a completely different rear section layout. Instead of the traditional outer quad-tip configuration, this version uses an M-Performance-style center exit design, placing the four outlets tightly at the center of the rear bumper area for a more focused and motorsport-inspired visual signature.\u003c\/p\u003e\n\u003cp data-start=\"1558\" data-end=\"2102\"\u003eAt the center of the system is the \u003cstrong data-start=\"1593\" data-end=\"1613\"\u003eAURUM FLOW CORE™\u003c\/strong\u003e, a proprietary 3D-printed exhaust convergence module developed to manage exhaust pulses from both banks of the S58 engine. Rather than relying on a conventional X-pipe or resonator, the AURUM FLOW CORE™ uses sculpted internal flow paths to guide, align, and equalize pressure waves before they move through the rest of the exhaust. This allows the system to reduce turbulence, stabilize harmonic behavior, and maintain a cleaner sound profile as boost, RPM, and exhaust velocity increase.\u003c\/p\u003e\n\u003cp data-start=\"2104\" data-end=\"2631\"\u003eThe AURUM FLOW CORE™ is treated with a gold heat-resistant carbon-ceramic coating, giving the system its signature VANTA GOLD™ identity while supporting thermal stability under sustained load. This coating is functional as well as visual, helping the core maintain consistent acoustic behavior through repeated heat cycles. The rear center-exit muffler section follows the same premium approach, using a gold heat-shielded finish to reinforce the VANTA GOLD™ appearance while improving heat management around the rear assembly.\u003c\/p\u003e\n\u003cp data-start=\"2633\" data-end=\"3147\"\u003eFrom an acoustic standpoint, this system is engineered to deliver a deep and controlled tone at low RPM, a sharper and more aggressive mid-range, and a clean, exotic upper-RPM sound that stays tight under load. The AURUM FLOW CORE™ helps hold the sound together, preventing the rasp and harmonic breakup often associated with aggressive S58 exhaust setups. The center exit layout adds a more concentrated rear sound projection, giving the car a stronger presence without turning the system into uncontrolled noise.\u003c\/p\u003e\n\u003cp data-start=\"3149\" data-end=\"3646\"\u003eThe rear valved section is designed to retain real-world usability. Valve operation can be configured with factory valve control or Yonristic remote valve control, depending on the customer’s setup and preference. With the valves closed, the system remains composed for daily driving and highway cruising. With the valves open, the flow path becomes more direct, delivering a louder, sharper, and more performance-focused sound while preserving the refinement expected from the VANTA GOLD™ series.\u003c\/p\u003e\n\u003cp data-start=\"3648\" data-end=\"3986\"\u003eEvery system is built with careful attention to fitment, alignment, and finish. The center exit layout requires precise rear section geometry to ensure proper outlet position, clean symmetry, and correct bumper clearance. Each assembly is precision welded and finished to match the visual and technical standard of the VANTA GOLD™ lineup.\u003c\/p\u003e\n\u003chr data-start=\"4324\" data-end=\"4327\"\u003e\n\u003ch2 data-start=\"4329\" data-end=\"4357\"\u003e\u003cstrong data-start=\"4332\" data-end=\"4357\"\u003eSound Characteristics\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"4359\" data-end=\"4589\"\u003e\n\u003cli data-start=\"4359\" data-end=\"4400\"\u003e\n\u003cp data-start=\"4361\" data-end=\"4400\"\u003eDeep and composed at idle and low RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4401\" data-end=\"4443\"\u003e\n\u003cp data-start=\"4403\" data-end=\"4443\"\u003eSmooth, aggressive mid-range character\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4444\" data-end=\"4499\"\u003e\n\u003cp data-start=\"4446\" data-end=\"4499\"\u003eClean, exotic, tightly controlled sound at high RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4500\" data-end=\"4540\"\u003e\n\u003cp data-start=\"4502\" data-end=\"4540\"\u003eNo metallic rasp or harmonic breakup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4541\" data-end=\"4589\"\u003e\n\u003cp data-start=\"4543\" data-end=\"4589\"\u003eRefined cruising behavior with valves closed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4591\" data-end=\"4594\"\u003e\n\u003ch2 data-start=\"4596\" data-end=\"4649\"\u003e\u003cstrong data-start=\"4599\" data-end=\"4649\"\u003ePerformance Gains (Real-World Planning Ranges)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"4651\" data-end=\"4820\"\u003eBy reducing restriction and improving exhaust flow efficiency, the VANTA GOLD Exhaust System provides measurable performance improvements even in cat-back configuration.\u003c\/p\u003e\n\u003cp data-start=\"4822\" data-end=\"4877\"\u003e\u003cstrong data-start=\"4822\" data-end=\"4875\"\u003eEstimated Gains (Cat-Back \/ Valved Section Only):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4878\" data-end=\"4936\"\u003e\n\u003cli data-start=\"4878\" data-end=\"4907\"\u003e\n\u003cp data-start=\"4880\" data-end=\"4907\"\u003e\u003cstrong data-start=\"4880\" data-end=\"4895\"\u003eHorsepower:\u003c\/strong\u003e +18–22 HP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4908\" data-end=\"4936\"\u003e\n\u003cp data-start=\"4910\" data-end=\"4936\"\u003e\u003cstrong data-start=\"4910\" data-end=\"4921\"\u003eTorque:\u003c\/strong\u003e +15–25 lb-ft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4938\" data-end=\"5235\"\u003eFor track-focused builds, the system can be paired with \u003cstrong data-start=\"4994\" data-end=\"5071\"\u003eYonristic Performance 3.5” MaxFlow Downpipes with integrated heat shields\u003c\/strong\u003e (track use only). When combined with appropriate ECU calibration, significantly higher gains are achievable depending on fuel quality and supporting modifications.\u003c\/p\u003e\n\u003cp data-start=\"5237\" data-end=\"5360\"\u003e\u003cem data-start=\"5237\" data-end=\"5360\"\u003e(Performance figures are realistic planning ranges. Actual results vary by tune, dyno type, fuel, and vehicle condition.)\u003c\/em\u003e\u003c\/p\u003e\n\u003chr data-start=\"5362\" data-end=\"5365\"\u003e\n\u003ch2 data-start=\"5367\" data-end=\"5392\"\u003e\u003cstrong data-start=\"5370\" data-end=\"5392\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"5394\" data-end=\"5935\"\u003e\n\u003cli data-start=\"5394\" data-end=\"5445\"\u003e\n\u003ch2 data-section-id=\"10od2gs\" data-start=\"5115\" data-end=\"5140\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"5118\" data-end=\"5140\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"5142\" data-end=\"5256\"\u003e\u003cstrong data-start=\"5142\" data-end=\"5162\"\u003eVehicle Fitment:\u003c\/strong\u003e\u003cbr data-start=\"5162\" data-end=\"5165\"\u003eBMW G80 M3 Sedan\u003cbr data-start=\"5181\" data-end=\"5184\"\u003eBMW G82 M4 Coupe\u003cbr data-start=\"5200\" data-end=\"5203\"\u003eBMW G83 M4 Convertible\u003cbr data-start=\"5225\" data-end=\"5228\"\u003eS58 3.0L Twin-Turbo Inline-6\u003c\/p\u003e\n\u003cp data-start=\"5258\" data-end=\"5356\"\u003e\u003cstrong data-start=\"5258\" data-end=\"5274\"\u003eSystem Type:\u003c\/strong\u003e\u003cbr data-start=\"5274\" data-end=\"5277\"\u003eValved cat-back exhaust system with M-Performance-style center exit rear layout\u003c\/p\u003e\n\u003cp data-start=\"5358\" data-end=\"5437\"\u003e\u003cstrong data-start=\"5358\" data-end=\"5380\"\u003eCenter Technology:\u003c\/strong\u003e\u003cbr data-start=\"5380\" data-end=\"5383\"\u003eAURUM FLOW CORE™ 3D-printed exhaust convergence module\u003c\/p\u003e\n\u003cp data-start=\"5439\" data-end=\"5578\"\u003e\u003cstrong data-start=\"5439\" data-end=\"5471\"\u003eCoating \/ Thermal Treatment:\u003c\/strong\u003e\u003cbr data-start=\"5471\" data-end=\"5474\"\u003eGold heat-resistant carbon-ceramic coating on AURUM FLOW CORE™\u003cbr data-start=\"5536\" data-end=\"5539\"\u003eGold heat-shielded rear muffler section\u003c\/p\u003e\n\u003cp data-start=\"5580\" data-end=\"5675\"\u003e\u003cstrong data-start=\"5580\" data-end=\"5598\"\u003eValve Control:\u003c\/strong\u003e\u003cbr data-start=\"5598\" data-end=\"5601\"\u003eFactory valve control available\u003cbr data-start=\"5632\" data-end=\"5635\"\u003eYonristic remote valve control available\u003c\/p\u003e\n\u003cp data-start=\"5677\" data-end=\"5746\"\u003e\u003cstrong data-start=\"5677\" data-end=\"5698\"\u003eMaterial Options:\u003c\/strong\u003e\u003cbr data-start=\"5698\" data-end=\"5701\"\u003eAISI 304 Stainless Steel\u003cbr data-start=\"5725\" data-end=\"5728\"\u003eTi-6Al-4V Titanium\u003c\/p\u003e\n\u003cp data-start=\"5748\" data-end=\"5790\"\u003e\u003cstrong data-start=\"5748\" data-end=\"5763\"\u003eTip Layout:\u003c\/strong\u003e\u003cbr data-start=\"5763\" data-end=\"5766\"\u003eFour center-exit outlets\u003c\/p\u003e\n\u003cp data-start=\"5792\" data-end=\"6005\"\u003e\u003cstrong data-start=\"5792\" data-end=\"5809\"\u003eInstallation:\u003c\/strong\u003e\u003cbr data-start=\"5809\" data-end=\"5812\"\u003eDirect-fit exhaust architecture designed around factory mounting points\u003cbr data-start=\"5883\" data-end=\"5886\"\u003eCenter-exit rear section may require the proper center-exit diffuser or bumper configuration depending on vehicle setup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"6053\" data-end=\"6056\"\u003e\n\u003ch2 data-start=\"6058\" data-end=\"6097\"\u003e\u003cstrong data-start=\"6061\" data-end=\"6097\"\u003eCompatibility \u0026amp; Related Products\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"6099\" data-end=\"6282\"\u003eThe VANTA GOLD Exhaust System is compatible with \u003cstrong data-start=\"6148\" data-end=\"6214\"\u003eYonristic Performance 3.5” MaxFlow Downpipes with Heat Shields\u003c\/strong\u003e for track-oriented builds (track use only; ECU tuning recommended).\u003c\/p\u003e\n\u003cp data-start=\"6284\" data-end=\"6516\"\u003eFor customers seeking our standard VANTA Edition exhaust for the G8X platform, please visit:\u003cbr data-start=\"6376\" data-end=\"6379\"\u003e👉 \u003ca class=\"decorated-link\" href=\"https:\/\/yonristic.com\/collections\/m4-yonristic-performance\/products\/bmw-g8x-m3-m4-vanta-edition-exhaust-system-yonristic-performance-1\" rel=\"noopener\" data-start=\"6382\" data-end=\"6516\"\u003ehttps:\/\/yonristic.com\/collections\/m4-yonristic-performance\/products\/bmw-g8x-m3-m4-vanta-edition-exhaust-system-yonristic-performance-1\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eInnovative Design and Superior Craftsmanship\u003c\/h3\u003e\n\u003cp\u003eThe BMW G8X M3 M4 exhaust system by Yonristic Performance features cutting-edge VANTA GOLD™ technology, offering a unique blend of style and functionality. Designed specifically for the G8X chassis, this exhaust system utilizes premium materials that ensure excellent corrosion resistance and lightweight durability. The innovative design improves exhaust flow, reducing backpressure to boost engine efficiency and delivering a dynamic sound profile. Each system undergoes meticulous engineering to provide maximum performance gains without compromising the iconic BMW M3 and M4 aesthetics.\u003c\/p\u003e\n\u003ch3\u003eEnhanced Sound Quality and Driving Experience\u003c\/h3\u003e\n\u003cp\u003eYonristic’s BMW G8X M3 M4 exhaust system transforms your driving experience with a rich, aggressive exhaust note that perfectly balances sportiness and refinement. The VANTA GOLD™ finish not only looks stunning but also contributes to heat dissipation, supporting higher performance during spirited driving. Whether cruising or pushing your M3 or M4 on the track, this exhaust system enhances throttle response and offers an unmistakable auditory presence that elevates the vehicle’s character and driver engagement.\u003c\/p\u003e\n\u003ch3\u003eEasy Installation and Durability\u003c\/h3\u003e\n\u003cp\u003eEngineered for a precise fit, the BMW G8X M3 M4 exhaust system installs easily with no need for modifications, ensuring a seamless upgrade. Yonristic Performance prioritizes durability, using high-grade materials that withstand extreme conditions and extended use. The VANTA GOLD™ coating not only adds visual appeal but also protects against wear and corrosion. This exhaust system is built to last, providing reliable performance and maintaining its premium look for years to come, making it an ideal choice for BMW enthusiasts.\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":42870083747911,"sku":"YR-0205-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":42870083780679,"sku":"YR-1890-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Black","offer_id":42870083813447,"sku":"YR-4732-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":42870083846215,"sku":"YR-4084-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Carbon Fiber 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