Product Description
SOUL Performance Products Performance Packages provide a comprehensive exhaust solution for the Porsche 718 Cayman GT4 RS and 718 Spyder RS, combining upgraded headers, Over Axle Pipes, and a valved rear exhaust into a complete system engineered around the GT3-derived 4.0-liter flat-six.
Every package begins with SOUL Competition Headers, replacing the restrictive factory header assemblies with a fully catless design utilizing longer primary tubing and enlarged merge collectors. From there, customers can choose between the fully catless Competition configuration or the high-flow catted Street configuration.
At the rear of the vehicle, SOUL's Valved Exhaust System replaces the factory muffler with a full-flow X-pipe design featuring two distinct operating modes. With the valves open, exhaust flows through the unrestricted 3-inch pathway for a smoother, higher-pitched motorsports-inspired sound. With the valves closed, exhaust is routed through SOUL's muffled secondary pathway, incorporating anti-drone and Helmholtz characteristics to substantially reduce exterior volume and cabin resonance.
When equipped with SOUL exhaust tips, the package maintains a full 3-inch exhaust flow path through the upgraded system. Factory exhaust tips can also be reused, although their smaller inlet requires the system to neck down at the outlets and introduces an additional restriction.
A thermal-management solution for the Over Axle Pipes is included as standard with every Performance Package.
Fitment
Fits:
Does not fit 718 Cayman GT4 RS Clubsport models.
Package Options
Competition Package
Designed for maximum exhaust flow, sound, and weight reduction.
Includes:
SOUL Competition Headers
SOUL Competition Over Axle Pipes
Over Axle Pipe heat solution
SOUL Valved Exhaust System
Selected exhaust tip configuration
The Competition Package removes the factory catalytic converters and utilizes fully catless Competition Over Axle Pipes, creating the most unrestricted configuration available within the SOUL Performance Package lineup.
This configuration is fully catless and will trigger a check engine light unless the vehicle is appropriately calibrated for the modified exhaust system.
This is the package for owners prioritizing maximum sound, minimum restriction, and the most aggressive overall exhaust configuration.
Street Package
Designed to deliver the flow and sound benefits of the Competition Headers while retaining high-flow monitored catalytic converters farther downstream in the exhaust system.
Includes:
SOUL Competition Headers
SOUL Sport Cat Over Axle Pipes
Integrated high-flow catalytic converters
Over Axle Pipe heat solution
SOUL Valved Exhaust System
Selected exhaust tip configuration
The Competition Headers still remove the factory header-mounted catalytic converters, but SOUL's Sport Cat Over Axle Pipes relocate high-flow monitored catalytic converters into the OAP section.
SOUL states that this configuration does not trigger a check engine light on North American-market vehicles. European-market vehicles require ECU tuning.
The Street Package provides an excellent balance for owners seeking substantial increases in sound and exhaust flow without running the system completely catless.
Valved Exhaust Operation
Valves Open
Full 3-inch high-flow exhaust pathway
Aggressive motorsports-inspired character
Smoother and higher-pitched X-pipe tone
Maximum exhaust volume
Maximum exhaust flow
Valves Closed
Exhaust routed through the muffled secondary pathway
Significantly reduced exterior volume
Reduced cabin resonance
Anti-drone design
Helmholtz characteristics help control undesirable frequencies
Provides a more comfortable cruising mode without sacrificing the aggressive valves-open experience
Exhaust Tip Options
SOUL offers two upgraded exhaust tip styles for the Performance Package along with the option to reuse the factory tips.
Slash Cut
A more traditional performance exhaust appearance with SOUL's full-size outlet design.
Available in:
Signature Satin
Matte Black
Weissach
A motorsports-inspired design modeled after the factory Weissach-style outlets and constructed from stainless steel.
Available in:
Signature Satin
Matte Black
Reuse OEM
Allows the factory Porsche exhaust tips to be retained for an OEM appearance.
Because the factory tips use a significantly smaller inlet diameter, retaining them requires the SOUL exhaust to neck down at the outlet. This creates additional restriction compared with SOUL's full-size exhaust tips.
For maximum exhaust flow and to preserve the full 3-inch system, SOUL recommends using its upgraded Slash Cut or Weissach tips.
Details
Complete header-to-tip exhaust upgrade
Choice of Competition or Street configuration
Catless Competition Headers included with both packages
Choice of catless Competition OAPs or high-flow Sport Cat OAPs
OAP thermal-management solution included as standard
SOUL Valved Exhaust System included
Full 3-inch exhaust pathway when equipped with SOUL exhaust tips
X-pipe rear exhaust design
Two distinct valves-open and valves-closed sound characteristics
Integrated anti-drone engineering
Helmholtz characteristics utilized in the valves-closed flow path
Longer header primary tubing than the restrictive factory configuration
Enlarged header merge collectors
Proven power and torque improvements through exhaust-flow optimization
Stronger midrange power delivery
Increased throttle response
Increased exhaust volume and character
Compatible with factory exhaust valve operation
Designed and manufactured by SOUL Performance Products
Backed by SOUL Performance Products' Lifetime Warranty for street and track use
Check Engine Light / Emissions Notice
Competition Package: Fully catless. A check engine light should be expected unless appropriate ECU calibration is used.
Street Package: Uses catless Competition Headers but relocates monitored high-flow catalytic converters into the Sport Cat Over Axle Pipes. SOUL states that this configuration does not trigger a check engine light on North American-market vehicles. European-market vehicles require ECU tuning.
The presence of catalytic converters or absence of a check engine light does not necessarily indicate compliance with local, state, or federal emissions regulations. Customers are responsible for confirming the legality of the selected configuration for their intended use and jurisdiction.
Product Description
SOUL Performance Products Performance Packages provide a comprehensive exhaust solution for the Porsche 718 Cayman GT4 RS and 718 Spyder RS, combining upgraded headers, Over Axle Pipes, and a valved rear exhaust into a complete system engineered around the GT3-derived 4.0-liter flat-six.
Every package begins with SOUL Competition Headers, replacing the restrictive factory header assemblies with a fully catless design utilizing longer primary tubing and enlarged merge collectors. From there, customers can choose between the fully catless Competition configuration or the high-flow catted Street configuration.
At the rear of the vehicle, SOUL's Valved Exhaust System replaces the factory muffler with a full-flow X-pipe design featuring two distinct operating modes. With the valves open, exhaust flows through the unrestricted 3-inch pathway for a smoother, higher-pitched motorsports-inspired sound. With the valves closed, exhaust is routed through SOUL's muffled secondary pathway, incorporating anti-drone and Helmholtz characteristics to substantially reduce exterior volume and cabin resonance.
When equipped with SOUL exhaust tips, the package maintains a full 3-inch exhaust flow path through the upgraded system. Factory exhaust tips can also be reused, although their smaller inlet requires the system to neck down at the outlets and introduces an additional restriction.
A thermal-management solution for the Over Axle Pipes is included as standard with every Performance Package.
Fitment
Fits:
Does not fit 718 Cayman GT4 RS Clubsport models.
Package Options
Competition Package
Designed for maximum exhaust flow, sound, and weight reduction.
Includes:
SOUL Competition Headers
SOUL Competition Over Axle Pipes
Over Axle Pipe heat solution
SOUL Valved Exhaust System
Selected exhaust tip configuration
The Competition Package removes the factory catalytic converters and utilizes fully catless Competition Over Axle Pipes, creating the most unrestricted configuration available within the SOUL Performance Package lineup.
This configuration is fully catless and will trigger a check engine light unless the vehicle is appropriately calibrated for the modified exhaust system.
This is the package for owners prioritizing maximum sound, minimum restriction, and the most aggressive overall exhaust configuration.
Street Package
Designed to deliver the flow and sound benefits of the Competition Headers while retaining high-flow monitored catalytic converters farther downstream in the exhaust system.
Includes:
SOUL Competition Headers
SOUL Sport Cat Over Axle Pipes
Integrated high-flow catalytic converters
Over Axle Pipe heat solution
SOUL Valved Exhaust System
Selected exhaust tip configuration
The Competition Headers still remove the factory header-mounted catalytic converters, but SOUL's Sport Cat Over Axle Pipes relocate high-flow monitored catalytic converters into the OAP section.
SOUL states that this configuration does not trigger a check engine light on North American-market vehicles. European-market vehicles require ECU tuning.
The Street Package provides an excellent balance for owners seeking substantial increases in sound and exhaust flow without running the system completely catless.
Valved Exhaust Operation
Valves Open
Full 3-inch high-flow exhaust pathway
Aggressive motorsports-inspired character
Smoother and higher-pitched X-pipe tone
Maximum exhaust volume
Maximum exhaust flow
Valves Closed
Exhaust routed through the muffled secondary pathway
Significantly reduced exterior volume
Reduced cabin resonance
Anti-drone design
Helmholtz characteristics help control undesirable frequencies
Provides a more comfortable cruising mode without sacrificing the aggressive valves-open experience
Exhaust Tip Options
SOUL offers two upgraded exhaust tip styles for the Performance Package along with the option to reuse the factory tips.
Slash Cut
A more traditional performance exhaust appearance with SOUL's full-size outlet design.
Available in:
Signature Satin
Matte Black
Weissach
A motorsports-inspired design modeled after the factory Weissach-style outlets and constructed from stainless steel.
Available in:
Signature Satin
Matte Black
Reuse OEM
Allows the factory Porsche exhaust tips to be retained for an OEM appearance.
Because the factory tips use a significantly smaller inlet diameter, retaining them requires the SOUL exhaust to neck down at the outlet. This creates additional restriction compared with SOUL's full-size exhaust tips.
For maximum exhaust flow and to preserve the full 3-inch system, SOUL recommends using its upgraded Slash Cut or Weissach tips.
Details
Complete header-to-tip exhaust upgrade
Choice of Competition or Street configuration
Catless Competition Headers included with both packages
Choice of catless Competition OAPs or high-flow Sport Cat OAPs
OAP thermal-management solution included as standard
SOUL Valved Exhaust System included
Full 3-inch exhaust pathway when equipped with SOUL exhaust tips
X-pipe rear exhaust design
Two distinct valves-open and valves-closed sound characteristics
Integrated anti-drone engineering
Helmholtz characteristics utilized in the valves-closed flow path
Longer header primary tubing than the restrictive factory configuration
Enlarged header merge collectors
Proven power and torque improvements through exhaust-flow optimization
Stronger midrange power delivery
Increased throttle response
Increased exhaust volume and character
Compatible with factory exhaust valve operation
Designed and manufactured by SOUL Performance Products
Backed by SOUL Performance Products' Lifetime Warranty for street and track use
Check Engine Light / Emissions Notice
Competition Package: Fully catless. A check engine light should be expected unless appropriate ECU calibration is used.
Street Package: Uses catless Competition Headers but relocates monitored high-flow catalytic converters into the Sport Cat Over Axle Pipes. SOUL states that this configuration does not trigger a check engine light on North American-market vehicles. European-market vehicles require ECU tuning.
The presence of catalytic converters or absence of a check engine light does not necessarily indicate compliance with local, state, or federal emissions regulations. Customers are responsible for confirming the legality of the selected configuration for their intended use and jurisdiction.
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