SOUL Performance Race Exhaust System for 982 Porsche 718 Cayman GT4 Clubsport

SOUL Performance developed the SOUL Race Exhaust System for the Porsche 718 GT4 Clubsport (2019+) as a track-focused, high-flow 2.5-inch solution that combines over axle pipes and a rear section to extract more sound and performance from the 3.8L platform. By reengineering the exhaust behind the headers, SOUL eliminates the factory dual exit-entry flange restriction that effectively necks the system down to 2.25 inches, replacing it with a true 2.5-inch flow path on each side while still accommodating factory-style tip mounting. A longer routing with a subtle X-style blend helps smooth the tone and push it higher inspired by the character of the previous 981 generation while maintaining the clearances needed for hard track use. The system delivers up to 29.9lb (13.5kg) of weight savings versus the factory components (27.5lb non-res vs 57.4lb factory). SOUL Performance also designed this setup to help avoid a check engine light on North American vehicles. Performance testing on a Dynojet by Jotech Motorsports recorded peak gains of 30.7 whp and 16.1 ft-lbs of torque, with an ECU tune recommended to further take advantage of the increased flow. Every system is fabricated in-house in Willow Grove, PA using mandrel-bent, thick-wall .065-inch T304L stainless steel with back-purged TIG welding and precision-cut flanges produced to ISO 9001:2015 tolerances. Each exhaust is fixture test-fit, foam packed, and shipped with new high-grade hardware plus four OEM Porsche gaskets for a true bolt-on installation, and it is backed by SOUL Performance’s lifetime warranty for both street and track use.

Development

Construction

• SOUL Performance assembles each system in-house in the USA using mandrel-bent, thick-wall .065-inch T304L stainless steel. Back-purged TIG welding with ARCAL Prime argon gas is used to ensure proper weld penetration and long-term durability. Waterjet-cut flanges are produced to ISO 9001:2015 standards with +/- 0.003-inch tolerances for exceptional precision. SOUL fabricates these over axle pipes in thick-gauge aluminum fixtures that act as a heat sink during welding, preventing warping of both the components and the fixtures to maintain consistent, perfect fitment.

Bolt on and Go

• SOUL Performance rigorously inspects every component, fixture test-fits each system to verify precise fitment, and foam packs everything to ensure it arrives in perfect condition. Each kit includes new high-grade hardware and four OEM Porsche gaskets for installation.

Features

• Track-focused 2.5-inch race exhaust with over axle pipes + rear section
• Removes the OEM 2.25-inch bottleneck with true 2.5-inch flow paths
• Subtle X-style blend and longer routing for a smoother, higher-pitched tone
• Up to 29.9 lb weight savings vs factory components
• .065-inch T304L stainless, back-purged TIG welded, ISO-precision flanges
• Fixture test-fit, foam packed, includes hardware + four OEM Porsche gaskets
• Designed to help avoid a CEL on North American vehicles
• Optional resonated or non-resonated configurations
• Backed by SOUL Performance lifetime warranty

Applications

• Porsche 718 GT4 Clubsport: 982 | 2019-2021 | MA125 – 3.8L F6

Notes

• Reuses OEM Tips

About SOUL Performance

• SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.