Product Description
SOUL Performance Products' Race Exhaust System replaces the restrictive factory rear muffler on the Porsche 718 Cayman GT4 RS and 718 Spyder RS with a lightweight, free-flowing X-pipe exhaust designed to bring out the motorsports character of the GT3-derived 4.0-liter flat-six.
Although the GT4 RS produces substantially more power than the standard GT4, Porsche retained a rear muffler architecture with tubing measuring less than 2.25 inches. SOUL replaces this section with a full 3-inch exhaust path from the inlet flanges through the exhaust tips, reducing restriction while dramatically changing the character of the exhaust note.
A bespoke X-pipe merges the exhaust pulses to create a smoother, sharper, higher-pitched tone reminiscent of Porsche's motorsports applications. Unlike the factory valved muffler, the Race Exhaust uses a single unrestricted flow path for a consistently aggressive sound.
The system is available in Non-Resonated and Resonated configurations, allowing customers to choose between maximum volume and weight reduction or additional control of low-RPM resonance.
Fitment
Fits:
Designed as a rear exhaust replacement for the 718 GT4 RS / Spyder RS platform.
Can be installed as a standalone rear exhaust upgrade or combined with upgraded Over Axle Pipes and headers for a more comprehensive exhaust system.
Does not fit 718 GT4 RS Clubsport models.
Non-Resonated Configuration
The Non-Resonated Race Exhaust is designed for owners seeking maximum sound, minimum restriction, and the greatest weight reduction.
Full 3-inch exhaust flow path
Bespoke X-pipe design
No rear muffler
No resonators
Maximum exhaust volume
Sharp, high-pitched motorsports-inspired tone
Approximately 27.5 lbs
Approximately 6.5 lbs lighter than the 34 lb factory rear exhaust
Lightest Race Exhaust configuration
Resonated Configuration
The Resonated Race Exhaust retains the same free-flowing architecture while incorporating non-restrictive resonators and anti-drone tubes.
Full 3-inch exhaust flow path
Bespoke X-pipe design
Non-restrictive resonators
Anti-drone tubes target undesirable frequencies below approximately 2,500 RPM
Reduced low-RPM resonance compared with the Non-Resonated configuration
Smoother and more refined overall exhaust character
Retains the aggressive high-RPM sound of the Race Exhaust
The Resonated configuration is ideal for owners who want the character and flow of the Race Exhaust while reducing some of the resonance associated with a completely non-resonated system.
Exhaust Tip Options
Slash Cut Double Wall
SOUL's traditional performance exhaust tip featuring double-wall construction and a full-size outlet designed around the 3-inch Race Exhaust.
Available in:
Signature Satin
Matte Black
Weissach
A motorsports-inspired stainless-steel exhaust tip influenced by the factory Weissach-style outlets while maintaining the larger flow area of SOUL's 3-inch exhaust system.
Available in:
Signature Satin
Matte Black
Details
Replaces the factory rear muffler
Full 3-inch exhaust flow path from the inlet flanges through SOUL exhaust tips
Bespoke X-pipe design
Higher-pitched, smoother motorsports-inspired exhaust note
Choice of Non-Resonated or Resonated configuration
Resonated version incorporates non-restrictive resonators and anti-drone tubes
Non-Resonated system weighs approximately 27.5 lbs
Factory rear exhaust weighs approximately 34 lbs
Approximately 6.5 lbs / 2.9 kg weight savings in Non-Resonated configuration
Constructed from thick-wall 0.065-inch T304L stainless steel
Mandrel-bent tubing
Back-purged TIG-welded construction
Precision water-jet-cut brackets
Components manufactured to ISO 9001:2015 standards
Tolerances of approximately ±0.003 inch
Fixture-built to minimize warping and maintain dimensional accuracy
New high-grade installation hardware included
Designed and built in-house in Willow Grove, Pennsylvania
Backed by SOUL Performance Products' Lifetime Warranty for street and track use
Race Exhaust vs. Factory Rear Exhaust
Factory Rear Exhaust
Less than 2.25-inch internal flow path
Valved factory muffler design
Approximately 34 lbs
Quieter overall sound
Greater exhaust restriction
SOUL Race Exhaust
Full 3-inch flow path
Free-flowing X-pipe architecture
No exhaust valves
Approximately 27.5 lbs in Non-Resonated configuration
Approximately 6.5 lbs lighter than factory
Significantly more aggressive exhaust volume
Smoother, higher-pitched exhaust character
Choice of Non-Resonated or Resonated configuration
Product Description
SOUL Performance Products' Race Exhaust System replaces the restrictive factory rear muffler on the Porsche 718 Cayman GT4 RS and 718 Spyder RS with a lightweight, free-flowing X-pipe exhaust designed to bring out the motorsports character of the GT3-derived 4.0-liter flat-six.
Although the GT4 RS produces substantially more power than the standard GT4, Porsche retained a rear muffler architecture with tubing measuring less than 2.25 inches. SOUL replaces this section with a full 3-inch exhaust path from the inlet flanges through the exhaust tips, reducing restriction while dramatically changing the character of the exhaust note.
A bespoke X-pipe merges the exhaust pulses to create a smoother, sharper, higher-pitched tone reminiscent of Porsche's motorsports applications. Unlike the factory valved muffler, the Race Exhaust uses a single unrestricted flow path for a consistently aggressive sound.
The system is available in Non-Resonated and Resonated configurations, allowing customers to choose between maximum volume and weight reduction or additional control of low-RPM resonance.
Fitment
Fits:
Designed as a rear exhaust replacement for the 718 GT4 RS / Spyder RS platform.
Can be installed as a standalone rear exhaust upgrade or combined with upgraded Over Axle Pipes and headers for a more comprehensive exhaust system.
Does not fit 718 GT4 RS Clubsport models.
Non-Resonated Configuration
The Non-Resonated Race Exhaust is designed for owners seeking maximum sound, minimum restriction, and the greatest weight reduction.
Full 3-inch exhaust flow path
Bespoke X-pipe design
No rear muffler
No resonators
Maximum exhaust volume
Sharp, high-pitched motorsports-inspired tone
Approximately 27.5 lbs
Approximately 6.5 lbs lighter than the 34 lb factory rear exhaust
Lightest Race Exhaust configuration
Resonated Configuration
The Resonated Race Exhaust retains the same free-flowing architecture while incorporating non-restrictive resonators and anti-drone tubes.
Full 3-inch exhaust flow path
Bespoke X-pipe design
Non-restrictive resonators
Anti-drone tubes target undesirable frequencies below approximately 2,500 RPM
Reduced low-RPM resonance compared with the Non-Resonated configuration
Smoother and more refined overall exhaust character
Retains the aggressive high-RPM sound of the Race Exhaust
The Resonated configuration is ideal for owners who want the character and flow of the Race Exhaust while reducing some of the resonance associated with a completely non-resonated system.
Exhaust Tip Options
Slash Cut Double Wall
SOUL's traditional performance exhaust tip featuring double-wall construction and a full-size outlet designed around the 3-inch Race Exhaust.
Available in:
Signature Satin
Matte Black
Weissach
A motorsports-inspired stainless-steel exhaust tip influenced by the factory Weissach-style outlets while maintaining the larger flow area of SOUL's 3-inch exhaust system.
Available in:
Signature Satin
Matte Black
Details
Replaces the factory rear muffler
Full 3-inch exhaust flow path from the inlet flanges through SOUL exhaust tips
Bespoke X-pipe design
Higher-pitched, smoother motorsports-inspired exhaust note
Choice of Non-Resonated or Resonated configuration
Resonated version incorporates non-restrictive resonators and anti-drone tubes
Non-Resonated system weighs approximately 27.5 lbs
Factory rear exhaust weighs approximately 34 lbs
Approximately 6.5 lbs / 2.9 kg weight savings in Non-Resonated configuration
Constructed from thick-wall 0.065-inch T304L stainless steel
Mandrel-bent tubing
Back-purged TIG-welded construction
Precision water-jet-cut brackets
Components manufactured to ISO 9001:2015 standards
Tolerances of approximately ±0.003 inch
Fixture-built to minimize warping and maintain dimensional accuracy
New high-grade installation hardware included
Designed and built in-house in Willow Grove, Pennsylvania
Backed by SOUL Performance Products' Lifetime Warranty for street and track use
Race Exhaust vs. Factory Rear Exhaust
Factory Rear Exhaust
Less than 2.25-inch internal flow path
Valved factory muffler design
Approximately 34 lbs
Quieter overall sound
Greater exhaust restriction
SOUL Race Exhaust
Full 3-inch flow path
Free-flowing X-pipe architecture
No exhaust valves
Approximately 27.5 lbs in Non-Resonated configuration
Approximately 6.5 lbs lighter than factory
Significantly more aggressive exhaust volume
Smoother, higher-pitched exhaust character
Choice of Non-Resonated or Resonated configuration
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