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- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
Built for maximum power and sound for the 992 GT3 and GT3 RS with interchangeable cat sections. Long tube runners and CNC’ed merge collectors optimize flow through the headers out to straight 3″ piping with an x-pipe for a higher pitched and smoother sound.
• Fits all Porsche 992 GT3 / GT3 RS models (2022+), and 991 Speedster
• Weighs up to 25.3 lbs / 11.4 kg less than factory exhaust components (68.2 lbs vs 42.9 lbs catless / 47.6 catted)
• Modular cat sections allows swapping from catted to catless
• Valve simulators allow for removal of factory valves without throwing a check engine light!
• All Soul Performance Products exhaust components are backed by the industry’s first and finest Lifetime Warranty for both street and track use
• Designed and built in-house at our Willow Grove, PA facility
HEADERS
For those individuals looking to maximize performance, shed over 25 lbs, and realize full sound potential a complete race system is a logical conclusion. By pursuing a full system replacement we can eliminate the restrictive cat assemblies, the “particulate filters”, and the giant 7 ⅝ connection point to the factory rear muffler assembly. A simple flange optimization to our previous generation GT3 Competition Headers allows us to get rid of the factory 991 gen connection point requiring costly OEM clamps and donut gaskets and utilize a more efficient v-band connection point.
Even a premier engineering masterpiece like the GT3 comes from Porsche fitted with exhaust manifolds restricted in terms of primary tubing length, runner diameter, and merge collection efficiency due to dense catalytic converters, mass production, and emission restriction compromises. By refining the interface between the flange/primary tubes, using smooth radius large diameter bends, and implementing performance oriented collectors with merge spikes, we have been able to achieve increased flow, response, and performance with a more aggressive exhaust note to match. A slip on merge collector was not considered to prevent any chances of exhaust leaks. Instead we focused on designing a high flow collector from CAD to CNC for a no compromise end result. This bespoke billet collector allows for maximized runner length and the elimination of several welds in the interest of durability.
REAR EXHAUST SECTION
The rear of the SOUL Race Exhaust System is optimized into a single, full 3″ flow. The design of the factory system includes very large catalytic converters terminating into a very heavy dual entry muffler with restrictive piping with variations throughout the flow path which hinder performance. Those seeking a race setup will appreciate the 25+lbs weight savings and concentration on increasing exhaust flow.
From there we dove into creating a header-back system to maintain maximum flow characteristics with a higher, smoother pitch and aggressiveness akin to an RSR race car. This full 3” diameter system is made from thick .065” wall T304L stainless steel and TIG welded with back purging to ensure it withstands hardcore track abuse. It’s also modular to allow interchanging between catless or high flow catted assemblies with minimal effect on exhaust velocity. After the catted/catless section, the exhaust flows into an X section where we took care to minimize the diameter reduction while maximizing the blend of the exhaust to create that higher smoother pitch you hear in the videos.
The electronic valve actuators can not be simply removed from the valves or else the car will throw a CEL and put it into a reduced rev limiter to 6k rpm. We have engineered valve simulators to allow removal of the valves! Simply plug the simulators into the factory valve harnesses and expect no check engine lights or issues!
SOUND
The SOUL Race Exhaust System transforms the 992 GT3’s sound into an authentic Cup Car experience. The X-pipe blend produces a higher-pitched, motorsport-style wail, delivering race-ready volume and tone that’s extreme for street use but perfectly suited for track driving. The result is an authoritative, spine-tingling exhaust note worthy of Porsche’s GT racing heritage.
POWER
Dyno testing conducted by Hydra Motor Works revealed substantial power gains:
• +23 whp / +19 ft-lbs torque with the SOUL Race Exhaust System alone
• +60 whp / +26 ft-lbs torque peak gains with the addition of a Hydra Stage 2 ECU tune
• Maximum observed gains: over +60 whp / +70 ft-lbs torque
These are exceptional results for a naturally aspirated engine—transforming throttle response, midrange pull, and top-end performance.
CONSTRUCTION
Each component is handcrafted in the USA from mandrel-bent .065″ wall T304L stainless steel. The billet 304L stainless steel head flanges and merge collectors are precision-cut on a 5-axis CNC machine for superior flow, strength, and accuracy.
All joints are TIG welded and back-purged with ARCAL™ Prime argon gas to ensure perfect weld penetration and long-term durability—essential for demanding track conditions.
CHECK ENGINE LIGHT
Because the factory catalytic converters are removed, this system may trigger a CEL. For competition use, an ECU calibration or tune is recommended.
LIFETIME WARRANTY
All SOUL exhaust components are backed by a Lifetime Warranty covering both street and track use. Our team provides prompt and professional support to resolve any issues or answer questions.
NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.
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.RES
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The acoustics of this dual-mode sports exhaust system are dependent on driving style, ranging from standard output during normal road driving to a more aggressive tone during performance use. Modes are selected using a button on the centre console (or 'Sport' mode button on vehicles with optional Sport Chrono Package/Sport Chrono Package Plus). if you need the switch console order part number 99761312900FHM
Please Note:
If the vehicle does not have the factory option of Sport Chrono Package/Sport Chrono Package Plus an extra wire harness is required. Part No.99761290501
Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2007>>
For Wiring Diagram please CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98704420001
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
DesignTek sports deep sound muffler/exhaust offers a sportive sound and better throttle response. With secondary cat bypass to increased BHP. Complete twin adjaustable stainless steel tails
Made from T304 stainless steel.
Fits:
Porsche Boxster 987 MK1
Porsche Cayman 987C MK1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606008703
The product you are viewing cross references to these numbers
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman S 3.4L 987C 2005-08
Kit Includes
- Air Induction Kit
- Plenum by IPD
- Throttle Body 82mm
- Milltek Exhaust Cat back
Exhaust Muffler / Silencer Rear box (Catalysts Bypass System).
Sports deep sound muffler/exhaust offers a sportive sound and better throttle response. With secondary cat bypass to increased BHP. Milltek system is complete twin adjaustable stainless steel tails. Made from T304 stainless steel.
For the ultimate performance gains we recommend this set is fitted with an ECU remap giving BHP and Torque that you can really feel and superb sports car sound.
Fits:
Porsche Boxster 987
Porsche Cayman 987C
NOTE: 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 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
POWERKIT9872
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
This is the switch required for the original Porsche sport exhaust system our part number code 99994420103
Fits:
For cars WITHOUT "PASM" electronic damper control
Porsche 997 MKI Carrera
Porsche 997 MKI Carrera S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761312900FMH
The product you are viewing cross references to these numbers