Soul Valved Exhaust System for Porsche 718 GT4 RS and Spyder RS

Description

The Soul 718 GT4 RS / Spyder RS Valved Exhaust System replaces the restrictive factory rear muffler and exhaust piping with a free-flowing, 3-inch-oval tubing layout and a bespoke valve-controlled rear section — giving your 718 GT4 RS / Spyder RS a dynamic dual-tone personality. With valves closed, it delivers a balanced, street-friendly exhaust note; with valves open, it unleashes a raw, aggressive GT3-like bark, deeper burbles on decel, and a rich flat-six soundtrack under load. The result: sharper throttle response, improved exhaust flow, and the dramatic transformation in exhaust character that turns your RS-car into a true enthusiast’s weapon.

Fitment Notes

• Designed specifically for Porsche 718 GT4 RS / Spyder RS (2022 +).

• Requires aftermarket over-axle pipes (or compatible aftermarket exhaust plumbing) for proper fitment — not compatible with factory over-axle pipes. 

• Works with factory headers (or aftermarket headers) and integrates with the car’s existing exhaust valve controls (or independent valve controller if preferred).

Included

• Full stainless-steel rear exhaust section: 3″ oval tubing, X-pipe merger, and valved muffler designed to fit 718 RS chassis. 

• Valve assembly (vacuum- or controller-actuated, depending on factory setup).

• Hardware and mounting flanges to mate with GT4 RS / Spyder RS rear under-body structure and existing or modified exhaust plumbing. 

• Option to select aftermarket performance exhaust tips designed to match the full 3″ flow; compatible with (but not ideal for) stock tips.

Product Specs

• Tubing size: 3.0-inch oval, full-flow throughout rear section to maximize exhaust flow and minimize restriction.

• Construction: Mandrel-bent T304L stainless steel with precision TIG-welded seams; pipe geometry designed to maximize flow while fitting in 718 RS rear chassis. 

• Exhaust configuration: X-pipe merger for balanced exhaust flow and improved scavenging, enhancing tone and throttle response. 

• Valve operation: Dual-mode — muffler path for “valves closed” (quiet / civilized sound), direct-flow path for “valves open” (full performance sound). 

• Weight: Designed to be similar to OEM rear exhaust system (or slightly lighter depending on tip/pipe configurations), minimizing added mass while improving flow.

Product Features

• Dual-Mode Exhaust Tone — Switch between a refined, daily-driver-friendly exhaust note with valves closed and a raw, aggressive GT-inspired roar with valves open — giving you flexibility depending on mood, time, or location. 

• Full 3″ Flow & Improved Throttle Response — Oversized oval piping and X-pipe design reduce back-pressure, allowing the 4.0 L flat-six to breathe better — resulting in sharper throttle response and fuller exhaust sound under load. 

• Anti-Drone Muffler Design — The exhaust includes a Helmholtz-type secondary flow path to minimize drone at cruising speeds — allowing a sporty exhaust character without cabin fatigue. 

• Track-Ready Sound & Performance Potential — With valves open (and especially when paired with over-axle pipes or upstream mods), the system unlocks the motorsport heritage of the GT4 RS’s flat-six — ideal for canyon runs, track days, or spirited driving. 

• OEM-Quality Fitment & Versatility — Designed to bolt into the GT4 RS chassis without extensive fabrication; compatible with factory or aftermarket headers and exhaust plumbing for a tailored build path.

• Lifetime Warranty — As with all Soul Performance exhaust components, this system is backed by a lifetime warranty for both street and track use — giving prospective buyers confidence in durability and longevity.

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