The Yonristic Performance Valved Exhaust System for the Porsche 992 GT3 / GT3 RS is engineered for drivers who want more than just volume. This system is designed to refine the entire sound character of the GT3 platform, bringing out the high-pitched, motorsport-inspired tone that the 4.0L naturally aspirated flat-six is capable of producing. Every section is designed as a fully bolt-on and reversible upgrade, requiring no cutting, welding, or permanent modification, so the integrity of your GT3 remains protected while the driving experience becomes dramatically more engaging.
At the center of the system is a 3-inch X-pipe architecture, selected for its ability to balance exhaust pulses, improve flow behavior, and create a more harmonized high-frequency sound. The X-pipe design helps the exhaust note build smoothly through the rev range, delivering a refined tone at low RPM and a sharp, exotic wail at wide-open throttle. Instead of producing a rough or uncontrolled sound, the system shapes the GT3’s voice into something cleaner, more precise, and more emotional.
The system is available in both AISI 304 stainless steel and Ti-6AL-4V titanium. Stainless steel provides long-term durability, corrosion resistance, and a strong, stable tone, while titanium offers major weight savings and a sharper, more resonant acoustic character. Both material options are hand TIG-welded for strength, consistency, and a premium visual finish.
A key update to this package is the dual valve-control flexibility. The system includes both factory valve control compatibility and remote valve control capability, giving owners the freedom to choose the setup that best fits their build. If you prefer OEM-style operation, the exhaust can be installed using factory valve control so the vehicle manages valve behavior through its original system. If you prefer full manual control, the included remote valve control allows you to open or close the valves on demand for maximum sound flexibility.
For customers choosing the remote valve control setup, we also include a valve simulator / valve eliminator in the package. This is designed to prevent valve-related warning lights or limp mode when the factory valve control is not being used. The goal is to give you the freedom of remote valve operation while keeping the vehicle’s electronic system satisfied when properly installed.
Developed from precise OEM scan data, every flange, bracket, and mounting point is engineered for factory-level fitment. CNC-machined connection points ensure accurate alignment, while reinforced mounting areas provide durability for both street and track use. From the 4-inch motorsport-style tips to the carefully finished welds, every detail is built to match the standard expected from a Porsche GT product.
This is not just an exhaust system. It is a complete sound, flow, and control upgrade for the 992 GT3 and GT3 RS.
