The factory rear muffler wasnt much of a restriction on the standard 718 GT4, but reusing it for the GT4 RS has created a bottleneck for the GT3-derived engine. The tubing diameter remains the same, meaning that increased power is now forced through tubing that measures less than 2 inches. Repurposing that muffler helps meet sound restrictions and eases manufacturing processes, but doesnt extract the most performance out of the GT4 RS.

Our Race Exhaust system measures a full 3 inches from the flanges to our tips, unleashing every bit of character from the 4.0-liter flat-six. The bespoke x-pipe creates a crisp motorsports tone, and our Resonated version tackles the drone under 2500 RPM using resonators and anti-drone tubes.

Exhaust Tip Selection:For those looking to maintain the factory appearance, this system can be used with OEM exhaust tips. However, please note that the OEM tips feature a much smaller diameter inlet, requiring the system to be necked down, which introduces a restriction and reduces overall performance. To extract the most from your GT4 RS, we strongly recommend selecting our high-performance exhaust tips, designed to complement the full 3-inch system without any compromises.

DETAILS:
+Weighs 6.5 lbs / 2.9 kg less than factory exhaust components (27.5 lbs vs 34 lb factory)
+All SOUL Performance Products exhaust components are backed by the industrys first and finest
+Designed and built in-house at our Willow Grove, PA facility

DEVELOPMENT:The factory rear muffler wasnt much of a restriction on the standard 718 GT4, but reusing it for the GT4 RS has created a bottleneck for the GT3-derived engine. The tubing diameter remains the same, meaning that increased power is now forced through tubing that measures less than 2 inches. Repurposing that muffler helps meet sound restrictions and eases manufacturing processes, but doesnt extract the most performance out of the GT4 RS.

Our Race Exhaust system measures a full 3 inches from the flanges to our tips, unleashing every bit of character from the 4.0-liter flat-six. The bespoke x-pipe creates a crisp motorsports tone, and our Resonated version tackles the drone under 2500 RPM using resonators and anti-drone tubes.

CONSTRUCTION: Each system is assembled in house in the USA out of mandrel bent, thick wall .065 T304L stainless steel. Back purged TIG welding (with

BOLT ON AND GO: Every component is rigorously quality-checked, tested in a fixture to guarantee fitment, and then foam packed to ensure they arrive in perfect condition. New high grade hardware is included for installation.

LIFETIME WARRANTY: Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our! Our team will quickly work with you to resolve any issues or answer any questions that you may have.