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Vehicle Group
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
Exhaust muffler bypass X-Pipe.
Fits:
Porsche 991 C2S / C4S
Click 'Zoom in' for large parts diagram.
3606009104 replaces No 17.
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009104
The product you are viewing cross references to these numbers
Fits:
Porsche 991 C2S / C4S
Click 'Zoom in' for large parts diagram.
3606009104 replaces No 17.
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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009104
3606009104
99111133105
99111133107
99111133504
99111133505
99111133506
99111133507
99111133701
99111133702
99111133703
The product you are viewing cross references to these numbers
Price: €643.50
In stock
Vehicle Group
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
DesignTek Secondary Exhaust Muffler Bypass for Porsche 991 S 3.8L
Fits:
Porsche 991 Carrera S 3.8L
These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Why the reason for these I do not know. Typically in the past we either see a main centre muffler or 2 mufflers with catalyst pipes. So this was the first simplest part to change out. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15.6lbs. The Designtek Secondary Exhaust Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.
Garage Notes: The pipes sometimes rub on the heatshields causing a resonation through the car. This can be sorted by redressing the heatshields but isn't a straight forward bolt up and go replacement.
The sound its self is quite impressive and very sporty from the outside but to drive causes a pretty bad droning sound under normal driving conditions. This exhaust peaks at 101decibels
According to the factories dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the factories Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009913
The product you are viewing cross references to these numbers
Fits:
Porsche 991 Carrera S 3.8L
These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Why the reason for these I do not know. Typically in the past we either see a main centre muffler or 2 mufflers with catalyst pipes. So this was the first simplest part to change out. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15.6lbs. The Designtek Secondary Exhaust Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.
Garage Notes: The pipes sometimes rub on the heatshields causing a resonation through the car. This can be sorted by redressing the heatshields but isn't a straight forward bolt up and go replacement.
The sound its self is quite impressive and very sporty from the outside but to drive causes a pretty bad droning sound under normal driving conditions. This exhaust peaks at 101decibels
According to the factories dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the factories Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009913
175909-01
99111132101
99111132103
99111132102
99111132501
99111132502
99111132503
99111132201
99111132203
99111132601
99111132602
99111132603
The product you are viewing cross references to these numbers
Price: €409.50
In stock
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
Secondary Sports Exhaust Boxes DesignTek for Porsche 991.1
Porsche 991 Carrera 3.4L
Porsche 991 Carrera S 3.8L
The secondary sports exhaust boxes are designed to give the car a deeper sound, these car be added to the factory exhaust parts and replace the two side muffler cans.
Powerful, robust and sporty. Better still, it can be further enhanced thanks to the sports exhaust system, featuring a modified secondary sports exhaust boxes, the sound varies with driving behaviour, ranging from a robust output during normal road driving to a distinctively more aggressive tone during performance use.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009923
The product you are viewing cross references to these numbers
Porsche 991 Carrera 3.4L
Porsche 991 Carrera S 3.8L
The secondary sports exhaust boxes are designed to give the car a deeper sound, these car be added to the factory exhaust parts and replace the two side muffler cans.
Powerful, robust and sporty. Better still, it can be further enhanced thanks to the sports exhaust system, featuring a modified secondary sports exhaust boxes, the sound varies with driving behaviour, ranging from a robust output during normal road driving to a distinctively more aggressive tone during performance use.
Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009923
126343-01
99111132101
99111132103
99111132501
99111132503
99111132502
99111132201
99111132203
99111132601
99111132603
99111132602
The product you are viewing cross references to these numbers
Price: €614.25
In stock
Vehicle Group
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
Sport exhaust silencers Porsche 991.1 Carrera S with bypass valves
FITS
Porsche 991.1 Carrera S 2012-2015
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector.
991.1 Carrera S is different from Carrera because it has the bypass valves
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual.
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand.
END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips.
MATERIAL
AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
FITS
Porsche 991.1 Carrera S 2012-2015
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector.
991.1 Carrera S is different from Carrera because it has the bypass valves
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual.
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand.
END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips.
MATERIAL
AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
Price: €2,394.01
Orderable
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
CARGRAPHIC Sport Exhaust System with GT3-look tailpipe center outlet, cylinder-head back with exhaust valves.
SOUND / SUPER SOUND Version
Fits:
Porsche 991.1 Carrera 2 / 4 3,4L
Porsche 991.1 Carrera 2S / 4S / GTS 3,8L
Consisting of:
• CARGRAPHIC Sport Manifold Set with 2" / 50,80mm primaries with 2x 200cpsi Ø130mm HD Tri-metal catalytic converters
• CARGRAPHIC Center Silencer Replacement, 2-piece X-pipe construction, open with merged gas flow and 2 integrated exhaust valves
• CARGRAPHIC Wheel-arch silencer set with flex-pipe connection
• CARGRAPHIC 100mm / 4,0" Sport Double-end tailpipes, GT3-Look, round, slash-cut with stainless steel liner made from SS304L stainless steel - Version: Carbon-Matt
SOUND / SUPER SOUND Export Version
SOUND / SUPER SOUND Version - switchable dual mode:
• Valves closed: Quieter tuned enhanced sporty SOUND note, practical pleasant cruising mode
• Valves open: Aggressive amplified enhanced SUPER SOUND note, sharper, crisper and volume increasing freer flowing mode - also accompanied with burbling and backfire with every application of the accelerator pedal
NO DRONE OR RESONATION even with further CARGRAPHIC exhaust components
Features:
• Perfectly matched exhaust components
• Performance manifold set with optimized exhaust flow
• Fully OBD2 compliant - No CEL / Check-Engine Light
• Absorptive silencer design
• CNC mandrel-bent pipework, which allows exhaust pipes with constant diameter.
• Integrated vacuum exhaust valves
• Fully made from SS304L stainless steel
• High performance components, dyno tested
• Olive- and slide connections enables easy installation and perfect adjustment
• Aeroquip fittings allow heat expansion without cracking
• Reinforced laser-cut brackets
• Exhaust valve specification as used by OE / factory manufacturers
• Reduced backpressure due to freer flowing
• Reduced operating temperature
• Maximized performance
• Improved throttle response, freer revving
• Improved enhanced acoustics with no drone, resonation or vibration
• Improved low level tone with sharper, crisper and volume increasing sound with revs
• Model specific tuned sound still in keeping with the marque
• Weight reduction
PERFORMANCE - Made in Germany
20KW(27PS) more power and 24Nm additional torque
Attention:
• A corresponding body conversion kit with matching end pipe cut-out is required for installation
• Porsche 991.1 Carrera S and GTS 3.8l models: The use of the factory installed valve control (also PSE) is still possible. Optionally, our performance valve control can be used, which also offers the function of opening the exhaust valves permanently.
• Porsche 991.1 Carrera 3,4l models: Require our separately available performance valve control, with which the exhaust gas valves are permanently opened or automatically controlled according to the rpm. Alternatively, it is also possible to retrofit and use the control unit of the Porsche Sport exhaust system (PSA / SAGA).
CARGRAPHIC SS304L lightweight stainless steel tailpipe trims are optionally available in the following finishes:
• Stainless steel mirror polished
• Matt-Black Thermopaint
• Gloss-Black enamelled
• Visual-Carbon Matt-Finish with stainless steel liner
• Visual-Carbon Gloss-Finish with stainless steel liner
• Visual-Carbon Gloss-Finish with perforated insert
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PERP91KITXGT3
The product you are viewing cross references to these numbers
SOUND / SUPER SOUND Version
Fits:
Porsche 991.1 Carrera 2 / 4 3,4L
Porsche 991.1 Carrera 2S / 4S / GTS 3,8L
Consisting of:
• CARGRAPHIC Sport Manifold Set with 2" / 50,80mm primaries with 2x 200cpsi Ø130mm HD Tri-metal catalytic converters
• CARGRAPHIC Center Silencer Replacement, 2-piece X-pipe construction, open with merged gas flow and 2 integrated exhaust valves
• CARGRAPHIC Wheel-arch silencer set with flex-pipe connection
• CARGRAPHIC 100mm / 4,0" Sport Double-end tailpipes, GT3-Look, round, slash-cut with stainless steel liner made from SS304L stainless steel - Version: Carbon-Matt
SOUND / SUPER SOUND Export Version
SOUND / SUPER SOUND Version - switchable dual mode:
• Valves closed: Quieter tuned enhanced sporty SOUND note, practical pleasant cruising mode
• Valves open: Aggressive amplified enhanced SUPER SOUND note, sharper, crisper and volume increasing freer flowing mode - also accompanied with burbling and backfire with every application of the accelerator pedal
NO DRONE OR RESONATION even with further CARGRAPHIC exhaust components
Features:
• Perfectly matched exhaust components
• Performance manifold set with optimized exhaust flow
• Fully OBD2 compliant - No CEL / Check-Engine Light
• Absorptive silencer design
• CNC mandrel-bent pipework, which allows exhaust pipes with constant diameter.
• Integrated vacuum exhaust valves
• Fully made from SS304L stainless steel
• High performance components, dyno tested
• Olive- and slide connections enables easy installation and perfect adjustment
• Aeroquip fittings allow heat expansion without cracking
• Reinforced laser-cut brackets
• Exhaust valve specification as used by OE / factory manufacturers
• Reduced backpressure due to freer flowing
• Reduced operating temperature
• Maximized performance
• Improved throttle response, freer revving
• Improved enhanced acoustics with no drone, resonation or vibration
• Improved low level tone with sharper, crisper and volume increasing sound with revs
• Model specific tuned sound still in keeping with the marque
• Weight reduction
PERFORMANCE - Made in Germany
20KW(27PS) more power and 24Nm additional torque
Attention:
• A corresponding body conversion kit with matching end pipe cut-out is required for installation
• Porsche 991.1 Carrera S and GTS 3.8l models: The use of the factory installed valve control (also PSE) is still possible. Optionally, our performance valve control can be used, which also offers the function of opening the exhaust valves permanently.
• Porsche 991.1 Carrera 3,4l models: Require our separately available performance valve control, with which the exhaust gas valves are permanently opened or automatically controlled according to the rpm. Alternatively, it is also possible to retrofit and use the control unit of the Porsche Sport exhaust system (PSA / SAGA).
CARGRAPHIC SS304L lightweight stainless steel tailpipe trims are optionally available in the following finishes:
• Stainless steel mirror polished
• Matt-Black Thermopaint
• Gloss-Black enamelled
• Visual-Carbon Matt-Finish with stainless steel liner
• Visual-Carbon Gloss-Finish with stainless steel liner
• Visual-Carbon Gloss-Finish with perforated insert
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PERP91KITXGT3
99104420003
The product you are viewing cross references to these numbers
Price: €10,524.15
Orderable
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
Stainless steel sports exhaust - valved.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EX27
The product you are viewing cross references to these numbers
Fits:
Porsche 991.1 Carrera 2 / Carrera 4 - 2012 to 2016
Porsche 991.1 Carrera 2S / Carrera 4S - 2012 to 2016
Product Description
Unleash the raw sound of your Porsche 991.1 with the Ultimate Performance Valved Exhaust by Rennline. This exhaust lets you keep your relationship healthy between you and you neighbours due to the dynamic valve technology built into our exhaust system. At the click of a button, you can keep your 991.1 quiet enough to appease anyone in your neighbourhood or open it up and let the loud pipes sing.
You have come to expect a certain level of quality and ease of installation when it comes to Rennline products. This part does not fall short in that category, made from 304 Stainless Steel and Tig Welded to perfection. It is truly a work of art. This exhaust is a direct bolt in replacement and is easily reversable back to stock and features an easy-to-follow install instructions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EX27
99111133105
99111133106
99111133107
99111143103
9111132101
99111132103
99111132501
99111132502
99111132503
99111142101
99111142102
99111142103
99111132201
99111132203
99111132601
99111132602
99111132603
99611142201
99611142202
99611142203
The product you are viewing cross references to these numbers
Prices from: €2,069.26
Vehicle Group
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Information
Supercup Exhaust System.
Loud and aggressive performance exhaust system designed and recommended for track use or for those looking for maximum sound on the street; replaces the restrictive factory mufflers with a free-flowing resonated design.
FEATURES:
• Fits all Porsche 991 Carrera vehicles from (2012+)
• Saves 12 lbs from the rear of the vehicle
• Choose from Fabspeed's Deluxe Quad-Style Tips (available in Polished, Black or Carbon Fibre finish) or Deluxe X-50 Style Tips
• Factory OEM tips are compatible with the Supercup system for both the single inlet tip on the non-PSE equipped models and also the dual inlet PSE equipped models.
• Designed to be compatible with factory/OEM headers and center muffler (NOTE: Please call/contact us if you're interested in combining this system with additional Fabspeed exhaust components.)
• Dramatically reduces backpressure and improves exhaust flow and sportscar sound
• Complete T304L stainless steel construction; 14-16ga CNC mandrel-bent 2.25" tubing
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR991SCUP
The product you are viewing cross references to these numbers
Loud and aggressive performance exhaust system designed and recommended for track use or for those looking for maximum sound on the street; replaces the restrictive factory mufflers with a free-flowing resonated design.
FEATURES:
• Fits all Porsche 991 Carrera vehicles from (2012+)
• Saves 12 lbs from the rear of the vehicle
• Choose from Fabspeed's Deluxe Quad-Style Tips (available in Polished, Black or Carbon Fibre finish) or Deluxe X-50 Style Tips
• Factory OEM tips are compatible with the Supercup system for both the single inlet tip on the non-PSE equipped models and also the dual inlet PSE equipped models.
• Designed to be compatible with factory/OEM headers and center muffler (NOTE: Please call/contact us if you're interested in combining this system with additional Fabspeed exhaust components.)
• Dramatically reduces backpressure and improves exhaust flow and sportscar sound
• Complete T304L stainless steel construction; 14-16ga CNC mandrel-bent 2.25" tubing
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR991SCUP
99111132201
99111132202
99111132203
99111142201
99111142202
99111142203
99111143705
99111143706
99111143707
The product you are viewing cross references to these numbers
Prices from: €2,300.16
DISPLAYING 1 to 7 (of 7 products)
Also found on these pages
About Sport Silencers / Mufflers
Porsche Sport Silencers & Mufflers - Performance Sound & Exhaust Upgrades
Sport Silencers / Mufflers are designed to enhance the sound, performance, and driving character of your Porsche by improving exhaust gas flow and delivering a more engaging exhaust note. Compared to standard exhaust silencers, sports mufflers reduce restriction, sharpen throttle response, and provide a sportier tone that better reflects Porsche’s performance heritage.
Available from Design911, this category includes both genuine Porsche sport exhaust components and high-quality aftermarket performance mufflers, giving owners the choice between factory-engineered authenticity and performance-focused customisation.
What Do Sport Silencers / Mufflers Do?
Sport silencers optimise exhaust flow while enhancing sound quality.
Core Functions:
- Reduce exhaust backpressure for improved engine breathing.
- Enhance throttle response and power delivery.
- Produce a deeper, sportier exhaust note.
- Improve exhaust efficiency and flow dynamics.
- Enhance the overall driving experience.
A well-designed sports muffler balances performance gains with refined sound control.
Why Do Standard Exhaust Silencers Fail or Fall Short?
Standard exhaust mufflers are designed primarily for noise
reduction, emissions compliance, and longevity. Over time, common issues
include:
- Internal corrosion from condensation and heat cycles.
- Restrictive baffling limiting exhaust flow.
- Dull or muted exhaust sound.
- Internal baffle breakdown causing rattles.
- Reduced efficiency when paired with performance upgrades.
As these components age, both performance and sound quality can deteriorate.
Why Upgrade to Sport Silencers / Mufflers?
Sport silencers are engineered to improve both performance and auditory feedback.
Upgrade Benefits:
- Improved exhaust flow and reduced restriction.
- Enhanced exhaust sound without excessive drone.
- Increased driving engagement and responsiveness.
- Available in OEM Porsche or performance aftermarket options.
- Ideal for road, touring, and spirited driving.
Upgrading delivers a more exciting exhaust character while supporting engine efficiency.
Highlights
- Porsche sport silencer and muffler upgrades
- OEM Porsche and premium aftermarket options
- Improved exhaust sound, flow, and performance
- Designed for performance-focused driving
- High-quality materials for durability and reliability
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Exhaust Package
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