The SOUL Center Muffler is designed for Porsche 991 and 991.2 GT3 / GT3 RS owners who want a stronger, more durable replacement for the factory center muffler with the ability to choose either more exhaust volume or less exhaust volume than stock.
SOUL developed this system after observing failures of factory GT3 center mufflers, including vehicles that had not otherwise been heavily modified. For street and track-driven GT3s, repeated thermal cycling and sustained high exhaust temperatures can place considerable stress on the factory center muffler assembly.
Rather than simply duplicating the factory component, SOUL uses thicker-gauge stainless steel construction and offers two distinct internal sound configurations. The Louder Than OEM version increases naturally aspirated flat-six presence, while the Quieter Than OEM version is designed for owners who need additional sound control for tracks with restrictive noise limits.
The muffler installs directly in place of the factory center muffler without permanent vehicle modification and can be used with an otherwise stock exhaust system or as part of a more extensively modified GT3 exhaust configuration.
Fits 2014–2016 Porsche 991.1 GT3
Fits 2016 Porsche 991.1 GT3 RS
Fits 2018–2019 Porsche 991.2 GT3
Fits 2019 Porsche 991.2 GT3 RS
Compatible with the 3.8L naturally aspirated flat-six used in the 991.1 GT3
Compatible with the 4.0L naturally aspirated flat-six used in the 991.1 GT3 RS and 991.2 GT3 / GT3 RS
Direct replacement for the factory center muffler
Compatible with otherwise stock exhaust systems
Compatible with upgraded headers and other exhaust components retaining the factory center-muffler interface
No permanent vehicle modification required
Does not fit Carrera, Turbo, or GT2 RS applications
Direct bolt-in replacement for the factory GT3 center muffler
Developed as a more durable alternative to the factory center muffler
SOUL identified factory center-muffler failures on both stock and modified GT3 applications
Constructed using thicker-gauge stainless steel than the factory component
Available in Louder Than OEM and Quieter Than OEM configurations
Louder version amplifies the naturally aspirated flat-six exhaust note
Quieter version reduces overall exhaust volume compared with the factory muffler
Quieter configuration is particularly useful for tracks with strict sound limits
Suitable for vehicles with factory or upgraded header systems
Direct bolt-on installation
Includes four AccuSeal clamps
Every component is quality-checked prior to shipment
Fixture-tested to verify proper fitment
Foam-packed to help protect the muffler during shipping
Designed and manufactured in-house by SOUL Performance Products in Willow Grove, Pennsylvania
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
SOUL offers two Center Muffler configurations to allow the exhaust system to be tailored around the vehicle's intended use.
Louder Than OEM
The Louder Than OEM configuration increases the presence of the naturally aspirated GT3 flat-six while retaining a true center muffler rather than replacing it with a straight-through bypass.
This is the appropriate configuration for owners who want additional exhaust character while maintaining a muffled exhaust system.
Expect greater exhaust presence throughout the rev range with additional emphasis on the GT3's high-RPM character.
SOUL Part Number: POR.GT3.MUFL
Quieter Than OEM
The Quieter Than OEM configuration is designed to reduce overall exhaust volume compared with the factory center muffler.
This version is particularly useful for GT3 owners who regularly attend tracks with strict sound restrictions or for vehicles with headers and other exhaust modifications that have already substantially increased overall volume.
SOUL Part Number: POR.GT3.MUFQ
SOUL developed this product after observing center-muffler failures across both the 997 and 991 generations of the GT3.
Repeated high-temperature operation, aggressive driving, and track use subject the center muffler to significant thermal cycling and vibration. Modified headers and other performance exhaust components can further increase the demands placed on the downstream exhaust system.
The SOUL Center Muffler uses thicker-gauge stainless construction to provide a more robust replacement while retaining a conventional muffled exhaust configuration.
This makes it particularly attractive for GT3 owners who want additional durability without converting the car to a center-muffler bypass.
Choose Louder Than OEM if:
You want more naturally aspirated GT3 exhaust sound
You want to retain a true center muffler
Your vehicle retains relatively quiet factory exhaust components
Track noise restrictions are not a major concern
You want additional high-RPM flat-six character without moving to a center bypass
Choose Quieter Than OEM if:
Your local tracks enforce strict sound limits
Your headers or other exhaust modifications have already increased volume substantially
You want additional sound attenuation
You want a durable replacement without increasing overall exhaust volume
The SOUL Center Muffler retains dedicated sound attenuation and is available in either louder-than-stock or quieter-than-stock configurations.
A center muffler bypass removes the center muffler's sound attenuation entirely for a more aggressive exhaust configuration and greater weight reduction.
For owners prioritizing maximum exhaust sound and minimum restriction, a center bypass provides the more aggressive solution.
For owners prioritizing durability, controlled sound levels, street usability, or track noise compliance, the SOUL Center Muffler provides the more appropriate solution.
There are no exhaust-tip variants associated with this product.
The SOUL Center Muffler is a replacement center muffler assembly and retains the vehicle's existing downstream exhaust-tip configuration.
No exhaust-tip selection is required when ordering.
The SOUL Center Muffler is designed for Porsche 991 and 991.2 GT3 / GT3 RS owners who want a stronger, more durable replacement for the factory center muffler with the ability to choose either more exhaust volume or less exhaust volume than stock.
SOUL developed this system after observing failures of factory GT3 center mufflers, including vehicles that had not otherwise been heavily modified. For street and track-driven GT3s, repeated thermal cycling and sustained high exhaust temperatures can place considerable stress on the factory center muffler assembly.
Rather than simply duplicating the factory component, SOUL uses thicker-gauge stainless steel construction and offers two distinct internal sound configurations. The Louder Than OEM version increases naturally aspirated flat-six presence, while the Quieter Than OEM version is designed for owners who need additional sound control for tracks with restrictive noise limits.
The muffler installs directly in place of the factory center muffler without permanent vehicle modification and can be used with an otherwise stock exhaust system or as part of a more extensively modified GT3 exhaust configuration.
Fits 2014–2016 Porsche 991.1 GT3
Fits 2016 Porsche 991.1 GT3 RS
Fits 2018–2019 Porsche 991.2 GT3
Fits 2019 Porsche 991.2 GT3 RS
Compatible with the 3.8L naturally aspirated flat-six used in the 991.1 GT3
Compatible with the 4.0L naturally aspirated flat-six used in the 991.1 GT3 RS and 991.2 GT3 / GT3 RS
Direct replacement for the factory center muffler
Compatible with otherwise stock exhaust systems
Compatible with upgraded headers and other exhaust components retaining the factory center-muffler interface
No permanent vehicle modification required
Does not fit Carrera, Turbo, or GT2 RS applications
Direct bolt-in replacement for the factory GT3 center muffler
Developed as a more durable alternative to the factory center muffler
SOUL identified factory center-muffler failures on both stock and modified GT3 applications
Constructed using thicker-gauge stainless steel than the factory component
Available in Louder Than OEM and Quieter Than OEM configurations
Louder version amplifies the naturally aspirated flat-six exhaust note
Quieter version reduces overall exhaust volume compared with the factory muffler
Quieter configuration is particularly useful for tracks with strict sound limits
Suitable for vehicles with factory or upgraded header systems
Direct bolt-on installation
Includes four AccuSeal clamps
Every component is quality-checked prior to shipment
Fixture-tested to verify proper fitment
Foam-packed to help protect the muffler during shipping
Designed and manufactured in-house by SOUL Performance Products in Willow Grove, Pennsylvania
Backed by SOUL Performance Products' Lifetime Warranty for both street and track use
SOUL offers two Center Muffler configurations to allow the exhaust system to be tailored around the vehicle's intended use.
Louder Than OEM
The Louder Than OEM configuration increases the presence of the naturally aspirated GT3 flat-six while retaining a true center muffler rather than replacing it with a straight-through bypass.
This is the appropriate configuration for owners who want additional exhaust character while maintaining a muffled exhaust system.
Expect greater exhaust presence throughout the rev range with additional emphasis on the GT3's high-RPM character.
SOUL Part Number: POR.GT3.MUFL
Quieter Than OEM
The Quieter Than OEM configuration is designed to reduce overall exhaust volume compared with the factory center muffler.
This version is particularly useful for GT3 owners who regularly attend tracks with strict sound restrictions or for vehicles with headers and other exhaust modifications that have already substantially increased overall volume.
SOUL Part Number: POR.GT3.MUFQ
SOUL developed this product after observing center-muffler failures across both the 997 and 991 generations of the GT3.
Repeated high-temperature operation, aggressive driving, and track use subject the center muffler to significant thermal cycling and vibration. Modified headers and other performance exhaust components can further increase the demands placed on the downstream exhaust system.
The SOUL Center Muffler uses thicker-gauge stainless construction to provide a more robust replacement while retaining a conventional muffled exhaust configuration.
This makes it particularly attractive for GT3 owners who want additional durability without converting the car to a center-muffler bypass.
Choose Louder Than OEM if:
You want more naturally aspirated GT3 exhaust sound
You want to retain a true center muffler
Your vehicle retains relatively quiet factory exhaust components
Track noise restrictions are not a major concern
You want additional high-RPM flat-six character without moving to a center bypass
Choose Quieter Than OEM if:
Your local tracks enforce strict sound limits
Your headers or other exhaust modifications have already increased volume substantially
You want additional sound attenuation
You want a durable replacement without increasing overall exhaust volume
The SOUL Center Muffler retains dedicated sound attenuation and is available in either louder-than-stock or quieter-than-stock configurations.
A center muffler bypass removes the center muffler's sound attenuation entirely for a more aggressive exhaust configuration and greater weight reduction.
For owners prioritizing maximum exhaust sound and minimum restriction, a center bypass provides the more aggressive solution.
For owners prioritizing durability, controlled sound levels, street usability, or track noise compliance, the SOUL Center Muffler provides the more appropriate solution.
There are no exhaust-tip variants associated with this product.
The SOUL Center Muffler is a replacement center muffler assembly and retains the vehicle's existing downstream exhaust-tip configuration.
No exhaust-tip selection is required when ordering.
