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SOUL Street Headers. Porsche 992 GT3 / GT3 RS - POR.992GT3.STH
POR.992GT3.STH
Vehicle Group
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
Information
Porsche 992 GT3 / GT3 RS - SOUL Street Headers
SOUL Street Headers are built around large-diameter, free-flowing catalytic converters with optimized cast flanges and runners for maximum gains in power, throttle response, and tone from the 992 GT3’s 4.0-liter flat-six.
• Direct replacement of factory headers on 992 GT3 / GT3 RS with stock rear exhaust
• All Soul Performance Products exhaust components are backed by the industry’s best Lifetime Warranty for both street and track use
• Designed and built in-house at our Willow Grove, PA facility
DEVELOPMENT
Even with its motorsport pedigree, the Porsche 992 GT3 and GT3 RS are not immune to the compromises imposed by emissions regulations and production constraints. Factory header design—limited by tubing length, runner diameter, and collector efficiency—restricts both sound and performance. That’s where SOUL steps in.
By replacing the restrictive OEM header assembly, which integrates catalytic converters and particulate filters, our SOUL Street Headers immediately free up flow and unlock performance. Each system is designed around large-diameter, high-flow catalytic converters and optimized runners for maximum gains in horsepower, throttle response, and the signature GT3 flat-six tone.
The result is a sharper, more visceral exhaust note that truly amplifies the 4.0-liter’s character—delivering a rich motorsport sound without compromising drivability. Built to endure the most aggressive track conditions, these headers feature billet CNC-machined head flanges that provide a smooth transition from the exhaust ports to the runners, increasing flow and reinforcing structural integrity to prevent cracking under repeated high-load use.
CONSTRUCTION:
Each set of SOUL Street Headers is handcrafted in-house in the USA from mandrel-bent, thick-wall (.065”) T304L stainless steel tubing for superior durability and thermal resistance. The billet 304L stainless steel head flanges are precision-machined on a 5-axis CNC mill, ensuring the most efficient exhaust flow and unmatched strength.
Every joint is TIG welded and back-purged with ARCAL™ Prime argon gas for full weld penetration and maximum longevity—essential for track reliability. Thick-gauge aluminum fixtures are used throughout fabrication to act as heat sinks, preventing distortion and guaranteeing perfect fitment on every set.
BOLT ON AND GO:
Each header set is rigorously inspected, fixture-tested, and foam-packed to ensure perfect fitment and safe delivery. Installation is completely bolt-on, designed to integrate seamlessly with the factory system or compatible aftermarket components.
LIFETIME WARRANTY:
Drive with confidence—every SOUL exhaust component is backed by our renowned Lifetime Warranty, covering both street and track use. Our support team stands ready to assist with fast, professional service for any questions or needs.
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.992GT3.STH
The product you are viewing cross references to these numbers
SOUL Street Headers are built around large-diameter, free-flowing catalytic converters with optimized cast flanges and runners for maximum gains in power, throttle response, and tone from the 992 GT3’s 4.0-liter flat-six.
• Direct replacement of factory headers on 992 GT3 / GT3 RS with stock rear exhaust
• All Soul Performance Products exhaust components are backed by the industry’s best Lifetime Warranty for both street and track use
• Designed and built in-house at our Willow Grove, PA facility
DEVELOPMENT
Even with its motorsport pedigree, the Porsche 992 GT3 and GT3 RS are not immune to the compromises imposed by emissions regulations and production constraints. Factory header design—limited by tubing length, runner diameter, and collector efficiency—restricts both sound and performance. That’s where SOUL steps in.
By replacing the restrictive OEM header assembly, which integrates catalytic converters and particulate filters, our SOUL Street Headers immediately free up flow and unlock performance. Each system is designed around large-diameter, high-flow catalytic converters and optimized runners for maximum gains in horsepower, throttle response, and the signature GT3 flat-six tone.
The result is a sharper, more visceral exhaust note that truly amplifies the 4.0-liter’s character—delivering a rich motorsport sound without compromising drivability. Built to endure the most aggressive track conditions, these headers feature billet CNC-machined head flanges that provide a smooth transition from the exhaust ports to the runners, increasing flow and reinforcing structural integrity to prevent cracking under repeated high-load use.
CONSTRUCTION:
Each set of SOUL Street Headers is handcrafted in-house in the USA from mandrel-bent, thick-wall (.065”) T304L stainless steel tubing for superior durability and thermal resistance. The billet 304L stainless steel head flanges are precision-machined on a 5-axis CNC mill, ensuring the most efficient exhaust flow and unmatched strength.
Every joint is TIG welded and back-purged with ARCAL™ Prime argon gas for full weld penetration and maximum longevity—essential for track reliability. Thick-gauge aluminum fixtures are used throughout fabrication to act as heat sinks, preventing distortion and guaranteeing perfect fitment on every set.
BOLT ON AND GO:
Each header set is rigorously inspected, fixture-tested, and foam-packed to ensure perfect fitment and safe delivery. Installation is completely bolt-on, designed to integrate seamlessly with the factory system or compatible aftermarket components.
LIFETIME WARRANTY:
Drive with confidence—every SOUL exhaust component is backed by our renowned Lifetime Warranty, covering both street and track use. Our support team stands ready to assist with fast, professional service for any questions or needs.
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POR.992GT3.STH
0PB254400F
0PB254400E
0PB254450F
0PB254450E
The product you are viewing cross references to these numbers
Price: £4,356.67
Orderable
Related products
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Information
Exhaust Manifold / Header DesignTek
(SET OF 2 Left & Right)
DesignTek High Grade 304 stainless steel headers. 12 HP 12FT LB Torque with a remap, Merger Collector- More power + torque is the benefit, Headers really make the car noticeably faster across the rpm range also adds a deeper sweet sound.
Fits:
Porsche 996 Carrera 3.4L / 3.6L
Porsche 997 Carrera 3.6L / 3.8L
Kit includes the 2 gaskets for the heads and the 2 triangular flange gaskets with nuts and bolts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606309601
The product you are viewing cross references to these numbers
(SET OF 2 Left & Right)
DesignTek High Grade 304 stainless steel headers. 12 HP 12FT LB Torque with a remap, Merger Collector- More power + torque is the benefit, Headers really make the car noticeably faster across the rpm range also adds a deeper sweet sound.
Fits:
Porsche 996 Carrera 3.4L / 3.6L
Porsche 997 Carrera 3.6L / 3.8L
Kit includes the 2 gaskets for the heads and the 2 triangular flange gaskets with nuts and bolts.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606309601
3606309601
99611110153
99611110253
9961111015
9961111025
99711110301
99711110401
99711110102
99711110202
99611110152
99611110252
99611110151
99611110251
99611110150
99611110250
The product you are viewing cross references to these numbers
Price: £495.00
In stock
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Information
DesignTek Sports Exhaust + Headers + Cat Bypass Package
DesignTek 996 Performance exhaust package. High Grade stainless steel exhaust system for Porsche 996 1998-2004.
Made from 14 - 16 gauge T304 stainless steel.
Includes Sports mufflers, Equal length sports headers and sports cats bypass pipes.
NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.
For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.
If you are located outside the UK, please check your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT24
The product you are viewing cross references to these numbers
DesignTek 996 Performance exhaust package. High Grade stainless steel exhaust system for Porsche 996 1998-2004.
Made from 14 - 16 gauge T304 stainless steel.
Includes Sports mufflers, Equal length sports headers and sports cats bypass pipes.
NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.
For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.
If you are located outside the UK, please check your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT24
3606009602
3606309601
3606209961
99611112257
99611113254
99611198404
99611113274
99611113275
99611113270
99611198405
99611113168
99611198504
99611113174
99611113175
99611113170
99611198505
99611112157
99611113154
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x Exhaust Muffler / Silencer Sports DesignTek for Porsche 996 Carrera (3606009602)
Unit Price: £499.00
InStock
1 x Exhaust Manifold / Header DesignTek for Porsche 996 / 997 (3606309601)
Unit Price: £495.00
InStock
1 x Exhaust Catalytic Converter Bypass Pipes for Porsche 996 1997>> DesignTek Evolution (3606209961)
Unit Price: £435.00
StockDue
Price: £1,429.00
Arriving soon
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Information
Sports Cat Bypass + Headers Package (+15 to 20bhp)
DesignTek 996 Performance exhaust package. High Grade stainless steel exhaust system for Porsche 996 GT3
Made from 14 - 16 gauge T304 stainless steel.
Includes Sports Cat Bypass and Equal length sports headers Giving +15 to +20 bhp that you can really feel and superb sports car sound.
NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.
For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.
If you are located outside the UK, please check your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT26
The product you are viewing cross references to these numbers
DesignTek 996 Performance exhaust package. High Grade stainless steel exhaust system for Porsche 996 GT3
Made from 14 - 16 gauge T304 stainless steel.
Includes Sports Cat Bypass and Equal length sports headers Giving +15 to +20 bhp that you can really feel and superb sports car sound.
NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.
For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.
If you are located outside the UK, please check your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT26
3606309601
3606209961
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x Exhaust Manifold / Header DesignTek for Porsche 996 / 997 (3606309601)
Unit Price: £495.00
InStock
1 x Exhaust Catalytic Converter Bypass Pipes for Porsche 996 1997>> DesignTek Evolution (3606209961)
Unit Price: £435.00
StockDue
Price: £930.00
Arriving soon