{"product_id":"mercedes-amg-gt-gts-gtc-gtr-non-valved-performance-exhaust-system","title":"Mercedes-AMG GT \/ GTS \/ GTC \/ GTR Non-Valved Performance Exhaust System - Yonristic Performance","description":"\u003ch1 data-start=\"160\" data-end=\"204\"\u003eMercedes-AMG GT \/ GTS \/ GTC \/ GTR (C190)\u003c\/h1\u003e\n\u003ch3 data-start=\"205\" data-end=\"249\"\u003eDual 3” H-Pipe Midsection + Rear X-Pipe Race Architecture\u003c\/h3\u003e\n\u003cp data-start=\"250\" data-end=\"275\"\u003e\u003cstrong data-start=\"250\" data-end=\"275\"\u003eFits 2015–2023 Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1206\" data-start=\"750\"\u003eThe Mercedes-AMG GT platform is already one of AMG’s most iconic modern sports cars, but the factory exhaust system is built with heavy sound control, internal restriction, and valve-dependent muffling. While that works well for refinement, it limits the full emotion of the M178 twin-turbo V8. This non-valved performance exhaust system is built for owners who want to remove that restraint completely and unlock the car’s most aggressive sound potential.\u003c\/p\u003e\n\u003cp data-end=\"1604\" data-start=\"1208\"\u003eAt the front and midsection, the system uses a dual high-flow layout paired with an H-pipe crossover. The H-pipe is chosen specifically to maintain the deep, muscular AMG tone that defines the M178 engine. Instead of pushing the sound too high or thin, the H-pipe helps balance pressure between both banks while keeping the exhaust note full, powerful, and rich through the low and mid RPM range.\u003c\/p\u003e\n\u003cp data-end=\"2142\" data-start=\"1606\"\u003eThe biggest difference is in the rear section. Instead of using a traditional muffler or valved muffler canister, this system uses a rear X-pipe crossover design. This rear X-pipe allows exhaust pulses to merge again before exit, refining the upper-frequency harmonics and giving the car a sharper, cleaner, and more exotic tone as RPM rises. By combining an H-pipe midsection with a rear X-pipe layout, the system creates a unique sound character: deep and brutal down low, but sharper and more motorsport-inspired under full throttle.\u003c\/p\u003e\n\u003cp data-end=\"2633\" data-start=\"2144\"\u003eBecause this is a non-valved design, the exhaust flow is always open. There is no quiet mode, no valve restriction, and no muffler chamber holding back the sound. This makes the system ideal for owners who want the strongest possible sound output, maximum presence, and a true track-style AMG experience. Cold starts become more dramatic, throttle input feels more connected, overrun becomes sharper, and the car gains the aggressive voice that many AMG GT owners wish it had from factory.\u003c\/p\u003e\n\u003cp data-end=\"3068\" data-start=\"2635\"\u003eThe system is engineered as a direct-fit cat-back solution using factory-style mounting points and connection locations. Every section is precision fabricated with smooth bends and hand TIG-welded construction to maintain strength, flow consistency, and long-term durability. The layout is designed to install cleanly without cutting or welding, making it a serious sound upgrade while still maintaining proper fitment and alignment.\u003c\/p\u003e\n\u003cp data-end=\"3264\" data-start=\"3070\"\u003eThis exhaust is not designed for the owner looking for subtle OEM-style refinement. It is built for the driver who wants the AMG GT to sound raw, violent, and alive every time the engine starts.\u003c\/p\u003e\n\u003chr data-end=\"3269\" data-start=\"3266\"\u003e\n\u003ch2 data-end=\"3295\" data-start=\"3271\" data-section-id=\"w0k0m7\"\u003eUnique Features\u003c\/h2\u003e\n\u003ch3 data-end=\"3346\" data-start=\"3297\" data-section-id=\"w0j1cl\"\u003eH-Pipe Midsection for Deep AMG V8 Character\u003c\/h3\u003e\n\u003cp data-end=\"3683\" data-start=\"3347\"\u003eThe midsection uses an H-pipe crossover to preserve the low-frequency muscle tone of the M178 V8. This helps keep the exhaust note deep, full, and aggressive instead of becoming too thin or overly high-pitched. The H-pipe also helps balance pressure between both banks, giving the car a smoother and stronger tone through the mid-range.\u003c\/p\u003e\n\u003ch3 data-end=\"3730\" data-start=\"3685\" data-section-id=\"1dbdddg\"\u003eRear X-Pipe Muffler Delete Architecture\u003c\/h3\u003e\n\u003cp data-end=\"4061\" data-start=\"3731\"\u003eThe traditional rear muffler section is replaced with an X-pipe crossover design. This allows the exhaust pulses to merge and refine again near the rear of the system, creating a sharper, cleaner, and more exotic upper-RPM sound. It gives the AMG GT a more motorsport-inspired tone while keeping the aggressive V8 identity intact.\u003c\/p\u003e\n\u003ch3 data-end=\"4101\" data-start=\"4063\" data-section-id=\"53od4g\"\u003eNon-Valved, Maximum-Sound Design\u003c\/h3\u003e\n\u003cp data-end=\"4384\" data-start=\"4102\"\u003eThis version removes the valve-based muffling concept completely. The system is always open, always flowing, and always ready to deliver full sound. It is built for customers who prioritize maximum volume, throttle emotion, and track-style character over quiet-mode daily operation.\u003c\/p\u003e\n\u003chr data-end=\"4389\" data-start=\"4386\"\u003e\n\u003ch2 data-end=\"4411\" data-start=\"4391\" data-section-id=\"1mk8w1b\"\u003ePerformance Gains\u003c\/h2\u003e\n\u003cp data-end=\"4531\" data-start=\"4413\"\u003eBy reducing exhaust restriction and removing the rear muffler section, this system improves exhaust flow and response.\u003c\/p\u003e\n\u003cp data-end=\"4593\" data-start=\"4533\"\u003e\u003cstrong data-end=\"4553\" data-start=\"4533\"\u003eEstimated Gains:\u003c\/strong\u003e\u003cbr data-end=\"4556\" data-start=\"4553\"\u003e+15 – 25 HP\u003cbr data-end=\"4570\" data-start=\"4567\"\u003e+15 – 22 lb-ft Torque\u003c\/p\u003e\n\u003cp data-end=\"4700\" data-start=\"4595\"\u003ePerformance gains may vary depending on vehicle condition, tune, downpipes, and supporting modifications.\u003c\/p\u003e\n\u003chr data-end=\"4705\" data-start=\"4702\"\u003e\n\u003ch2 data-end=\"4728\" data-start=\"4707\" data-section-id=\"rkota4\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cp data-end=\"4841\" data-start=\"4730\"\u003e\u003cstrong data-end=\"4747\" data-start=\"4730\"\u003eConfiguration\u003c\/strong\u003e\u003cbr data-end=\"4750\" data-start=\"4747\"\u003eCat-back exhaust system\u003cbr data-end=\"4776\" data-start=\"4773\"\u003eNon-valved performance layout\u003cbr data-end=\"4808\" data-start=\"4805\"\u003eRear muffler replacement design\u003c\/p\u003e\n\u003cp data-end=\"4971\" data-start=\"4843\"\u003e\u003cstrong data-end=\"4859\" data-start=\"4843\"\u003eArchitecture\u003c\/strong\u003e\u003cbr data-end=\"4862\" data-start=\"4859\"\u003eDual high-flow exhaust routing\u003cbr data-end=\"4895\" data-start=\"4892\"\u003eH-pipe crossover midsection\u003cbr data-end=\"4925\" data-start=\"4922\"\u003eRear X-pipe crossover muffler-delete section\u003c\/p\u003e\n\u003cp data-end=\"5071\" data-start=\"4973\"\u003e\u003cstrong data-end=\"4989\" data-start=\"4973\"\u003eValve System\u003c\/strong\u003e\u003cbr data-end=\"4992\" data-start=\"4989\"\u003eNon-valved design\u003cbr data-end=\"5012\" data-start=\"5009\"\u003eAlways-open exhaust flow\u003cbr data-end=\"5039\" data-start=\"5036\"\u003eBuilt for maximum sound output\u003c\/p\u003e\n\u003cp data-end=\"5171\" data-start=\"5073\"\u003e\u003cstrong data-end=\"5089\" data-start=\"5073\"\u003eConstruction\u003c\/strong\u003e\u003cbr data-end=\"5092\" data-start=\"5089\"\u003eMandrel-bent piping\u003cbr data-end=\"5114\" data-start=\"5111\"\u003eHand TIG-welded assembly\u003cbr data-end=\"5141\" data-start=\"5138\"\u003ePrecision-engineered fitment\u003c\/p\u003e\n\u003cp data-end=\"5291\" data-start=\"5173\"\u003e\u003cstrong data-end=\"5189\" data-start=\"5173\"\u003eInstallation\u003c\/strong\u003e\u003cbr data-end=\"5192\" data-start=\"5189\"\u003eDirect bolt-on installation\u003cbr data-end=\"5222\" data-start=\"5219\"\u003eUses factory-style mounting points\u003cbr data-end=\"5259\" data-start=\"5256\"\u003eNo cutting or welding required\u003c\/p\u003e\n\u003chr data-end=\"5296\" data-start=\"5293\"\u003e\n\u003ch2 data-end=\"5316\" data-start=\"5298\" data-section-id=\"16q3upg\"\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp data-end=\"5443\" data-start=\"5318\"\u003eMercedes-AMG GT — 2015–2023\u003cbr data-end=\"5348\" data-start=\"5345\"\u003eMercedes-AMG GT S — 2015–2023\u003cbr data-end=\"5380\" data-start=\"5377\"\u003eMercedes-AMG GT C — 2017–2023\u003cbr data-end=\"5412\" data-start=\"5409\"\u003eMercedes-AMG GT R — 2017–2023\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"5503\" data-start=\"5445\"\u003eChassis: C190 \/ R190\u003cbr data-end=\"5468\" data-start=\"5465\"\u003eEngine: AMG M178 4.0L Twin-Turbo V8\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"AISI304 Stainless Steel \/ Catback Exhaust","offer_id":42831656747079,"sku":"YR-5740-MER-AIS","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ ' + Free Flow Downpipes","offer_id":42831656779847,"sku":"YR-9550-MER-AIS","price":2799.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ ' + High Flow Downpipes (200 Cells)","offer_id":42831656812615,"sku":"YR-4085-MER-AIS","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ Catback Exhaust","offer_id":42831656845383,"sku":"YR-3048-MER-TI-","price":3099.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ ' + Free Flow Downpipes","offer_id":42831656878151,"sku":"YR-4065-MER-TI-","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ ' + High Flow Downpipes (200 Cells)","offer_id":42831656910919,"sku":"YR-6651-MER-TI-","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/3680\/3143\/files\/409_4e01115f-be1a-4328-9aa5-b6fde046f17a.jpg?v=1780084027","url":"https:\/\/yonristic.com\/products\/mercedes-amg-gt-gts-gtc-gtr-non-valved-performance-exhaust-system","provider":"Yonristic Performance","version":"1.0","type":"link"}