The SOUL Valved Exhaust System is a premium rear exhaust upgrade for the Porsche 718 Cayman GT4 RS and 718 Spyder RS. This is the ideal setup for owners who want a major improvement in sound and flow, but still want the ability to quiet the car down when needed.
From the factory, the GT4 RS and Spyder RS use a rear muffler layout carried over from the standard 718 GT4. While that works for factory noise limits and production requirements, it does not fully unlock the character of the GT3-derived 4.0L engine. SOUL’s Valved Exhaust System replaces the factory rear muffler section with a freer-flowing design using full 3-inch oval tubing to fit within the tight rear chassis area.
With the valves open, the system delivers a sharper, louder, more motorsports-inspired exhaust note. With the valves closed, the system is designed to reduce volume and help make the car more comfortable for street driving. SOUL also designed the secondary flow path as an anti-drone chamber to help reduce unwanted resonance.
Fitment
Fits:
Porsche 718 Cayman GT4 RS
Porsche 718 Spyder RS
Does not fit 718 GT4 Clubsport models.
Important fitment note: This system is not compatible with the factory over-axle pipes. It must be installed with SOUL over-axle pipes or another compatible aftermarket over-axle pipe setup.
Available Options
Tip Finish: Weissach, Signature Satin, Matte Black, or Reuse OEM
Tip Style: Weissach, Slash Cut, Straight Cut, or Reuse OEM
Key Features
DasMotoring SKU: DM-SOUL-718RS-VALVEEXH
Valved rear exhaust system for the 718 GT4 RS / Spyder RS
Replaces the factory rear muffler section
Full 3-inch oval tubing design
Designed to improve sound, flow, and response
Valved design allows two distinct sound levels
Anti-drone chamber design helps reduce unwanted resonance
Designed to pair with SOUL over-axle pipes or compatible aftermarket over-axle pipes
Available with SOUL high-flow exhaust tips or configured to reuse factory tips
Designed and built in-house by SOUL Performance Products in Willow Grove, Pennsylvania
Backed by SOUL’s lifetime warranty
DasMotoring Notes
This is the best SOUL rear exhaust choice for GT4 RS and Spyder RS owners who want more sound and performance potential without going to a fixed-volume race exhaust. If you want the car to have two personalities — louder and more aggressive with the valves open, calmer with the valves closed — this is the setup to choose.
Because this system is not compatible with factory over-axle pipes, make sure your build includes SOUL Competition Over Axle Pipes, SOUL Sport Cat Over Axle Pipes, or another compatible aftermarket over-axle pipe option.
SOUL allows this system to be configured with OEM exhaust tips, but the factory tips have a smaller inlet diameter. Reusing the OEM tips requires the system to neck down near the tips, which creates a restriction. For best performance and flow, DasMotoring recommends selecting SOUL’s matching high-flow tips instead of reusing the factory tips.
The SOUL Valved Exhaust System is a premium rear exhaust upgrade for the Porsche 718 Cayman GT4 RS and 718 Spyder RS. This is the ideal setup for owners who want a major improvement in sound and flow, but still want the ability to quiet the car down when needed.
From the factory, the GT4 RS and Spyder RS use a rear muffler layout carried over from the standard 718 GT4. While that works for factory noise limits and production requirements, it does not fully unlock the character of the GT3-derived 4.0L engine. SOUL’s Valved Exhaust System replaces the factory rear muffler section with a freer-flowing design using full 3-inch oval tubing to fit within the tight rear chassis area.
With the valves open, the system delivers a sharper, louder, more motorsports-inspired exhaust note. With the valves closed, the system is designed to reduce volume and help make the car more comfortable for street driving. SOUL also designed the secondary flow path as an anti-drone chamber to help reduce unwanted resonance.
Fitment
Fits:
Porsche 718 Cayman GT4 RS
Porsche 718 Spyder RS
Does not fit 718 GT4 Clubsport models.
Important fitment note: This system is not compatible with the factory over-axle pipes. It must be installed with SOUL over-axle pipes or another compatible aftermarket over-axle pipe setup.
Available Options
Tip Finish: Weissach, Signature Satin, Matte Black, or Reuse OEM
Tip Style: Weissach, Slash Cut, Straight Cut, or Reuse OEM
Key Features
DasMotoring SKU: DM-SOUL-718RS-VALVEEXH
Valved rear exhaust system for the 718 GT4 RS / Spyder RS
Replaces the factory rear muffler section
Full 3-inch oval tubing design
Designed to improve sound, flow, and response
Valved design allows two distinct sound levels
Anti-drone chamber design helps reduce unwanted resonance
Designed to pair with SOUL over-axle pipes or compatible aftermarket over-axle pipes
Available with SOUL high-flow exhaust tips or configured to reuse factory tips
Designed and built in-house by SOUL Performance Products in Willow Grove, Pennsylvania
Backed by SOUL’s lifetime warranty
DasMotoring Notes
This is the best SOUL rear exhaust choice for GT4 RS and Spyder RS owners who want more sound and performance potential without going to a fixed-volume race exhaust. If you want the car to have two personalities — louder and more aggressive with the valves open, calmer with the valves closed — this is the setup to choose.
Because this system is not compatible with factory over-axle pipes, make sure your build includes SOUL Competition Over Axle Pipes, SOUL Sport Cat Over Axle Pipes, or another compatible aftermarket over-axle pipe option.
SOUL allows this system to be configured with OEM exhaust tips, but the factory tips have a smaller inlet diameter. Reusing the OEM tips requires the system to neck down near the tips, which creates a restriction. For best performance and flow, DasMotoring recommends selecting SOUL’s matching high-flow tips instead of reusing the factory tips.
