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Porsche > 997 (911) MK1 2005-2008 > 997 MK1 GT3 2007-09 > Exhausts >

All Silencers / Mufflers

All Silencers / Mufflers

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DISPLAYING 1 to 10 (of 10 products)
Akrapovic Slip-On Line Titanium Exhaust for Porsche 991 (911) GT3 / RS 2014>> - 99711102792, 99711102799, 99111102790
2
Akrapovic Slip-On Line Titanium Exhaust for Porsche 991 (911) GT3 / RS 2014>>
MTP-PO997GT3H/1
Product Information
Product Information
Akrapovic Slip-On Line Titanium Exhaust

Fits:
Porsche 997.1 GT3 3.6L 2007>>
Porsche 997.2 GT3 3.8L 2010>>
Porsche 991 (911) GT3 2014>>
Porsche 991 (911) GT3 RS 2014>>

Akrapovič's Slip-On Line represents the first step in the exhaust system tuning process and the muffler can easily be installed onto the Porsche GT3's original system. Built from hi-grade titanium and finished with two eye-catching double round tailpipes, this entry system makes the GT3 more powerful and lighter, and gives the car that unique Akrapovič sound. Designed to make the car stand out from the crowd and increase its appeal even more, the visual delight of the Akrapovič Slip-On can be further enhanced with the addition of an optional carbon- fibre rear diffuser. Beautifully handcrafted from the finest materials and designed to enrich the exclusive look of the titanium exhaust system, the diffuser is a must-have extra for any discerning owner.

TECHNICAL DATA
* measured with: Porsche 911 GT3 RS (991) 2014

Maximum power:
- kW: plus 4.5 at 7800 rpm
- HP (m): plus 6.1 at 7800 rpm
- HP (i): plus 6 at 7800 rpm

Maximum torque:
- Nm: plus 4.9 at 8100 rpm
- lb-ft: plus 3.6 at 8100 rpm

Weight:
- minus 1.1 kg / 2.4 lb

*** Mandatory Extra Part Required
Tail pipe set (Titanium) - part no TP-PO991RS/H/T

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

MTP-PO997GT3H
99711102792
99711102799
99111102790

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Bypass Pipes NON-VALVED. Porsche 997 GT3 - 99711104790, 99711104795, 99711104890, 99711104895
3
Exhaust Muffler / Silencer Bypass Pipes NON-VALVED. Porsche 997 GT3
FSPOR997GT3SMB
Product Information
Product Information
Fabspeed Side Muffler Bypass Pipes (Non-Valved).


fabspeed

Replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings. Includes valves which maintain the factory sound level adjustment for ultimate combination of performance and comfort.

FEATURES:

• Fits: all Porsche 997 GT3 / GT3RS vehicles 2006-2009
• Replicates aggressive CUP car sound for the street
• 14-16ga T304 Stainless Steel construction
• Simple bolt-on installation
• 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.

FSPOR997GT3SMB
99711104790
99711104795
99711104890
99711104895

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Bypass Pipes VALVED. Porsche 997 GT3 - 99711104790, 99711104795, 99711104890, 99711104895
1
Exhaust Muffler / Silencer Bypass Pipes VALVED. Porsche 997 GT3
FSPOR997GT3SMBV
Product Information
Product Information
Fabspeed Side Muffler Bypass Pipes (Valved).

fabspeed

Replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings. Includes valves which maintain the factory sound level adjustment for ultimate combination of performance and comfort.

FEATURES:

• Fits: all Porsche 997 GT3 / GT3RS vehicles 2006-2009
• Replicates aggressive CUP car sound for the street
• 14-16ga T304 Stainless Steel construction
• Simple bolt-on installation
• 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.

FSPOR997GT3SMBV
99711104790
99711104795
99711104890
99711104895

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer. Porsche 997 GT3 2007-09 - 99711102790
3
Exhaust Muffler / Silencer. Porsche 997 GT3 2007-09
Special Order item
99711102790
Product Information
Product Information
Exhaust Muffler / Silencer.

porsche

Fits:
Porsche 997 GT3 3.6L 2007-09

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99711102790
99711102790

The product you are viewing cross references to these numbers
Exhaust muffler bypass x-pipe with headers, Valvetronic. Porsche 997 GT3 DesignTek - 3606609716, 69-PS115V
3
Exhaust muffler bypass x-pipe with headers, Valvetronic. Porsche 997 GT3 DesignTek
3606609716
Product Information
Product Information
Exhaust muffler bypass x-pipe with headers, Valvetronic.

designtek

DesignTek® exhausts are built for the sound and performance to enhance your Porsche 997 GT3. This kit includes Cat-back with valves, Manifolds and Matt black chromed tail pipes

Fits:
Porsche 997 GT3 / GT3RS 2007>>

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3606609716
3606609716
69-PS115V

The product you are viewing cross references to these numbers
Exhaust system RACE for Porsche 997GT3 QUICK SILVER
1
Exhaust system RACE for Porsche 997GT3 QUICK SILVER
PS997T
Product Information
Product Information
The ultimate Sports Exhaust system for the Porsche GT3 inc RS & CS
QuickSilver were approached by a well known specialist in racing and track-day Porsche, to develop a complete SUPERCUP exhaust system for enthusiast customers.

KEY FEATURES:
• More Power +20bhp
• Less Weight - to lose over 20kgs (~44lbs) from the rear of the car.
• Ease of fit & no loss of ground clearance > All in a compact volume.
• Great Sound - but to enable compliance with most track-day venues - A tall order!
• Motorsports Look.
• Appropriate Sound - about 105dB > but reduced further with removable Titanium cans.

An ambitious project, requiring new materials technology, manufacturing methods, component integration and constant testing.

The factory exhaust includes five muffler casings, 2 x Cats, 2 x side mufflers and 1 x rear muffler. QuickSilver's brief was to distil these into 1 x casing & similar to the system produced by Porsche's Motorsport Dept for their international one-make racing series.

Drawing their constant racing experience our partners were able to provide technical input and testing facilities.

Throughout the development period the system was evaluated both at our partner's in-house test facilities and on the track. Each time refinements were included in the overall design to create a fantastic system worthy of the Porsche name.

QuickSilver system includes:
• Manifolds with equal-lenght primary pipes of the appropriate bore for optimum power.
• Single rear silencer casing housing integral 200 cpsi RACE catalytic converters.
• Provision for fitting of OBD2 exhaust sensors measuring the exhaust gas composition before and after the Cats on both cylinder banks.

Brand: QUICK SILVER

Fits:
Porsche 911 (997) 2007-09
Mini MAXFLO Performance Mufflers. Porsche 997 GT3 / GT3RS - 99711112160, 99711102790, 99711102792 - FS.POR.997GT3.CMAX, FS.POR.997GT3.CMAXB, FS.POR.997GT3.CMAXP, FS.POR.997GT3.CMAXC
2
Mini MAXFLO Performance Mufflers. Porsche 997 GT3 / GT3RS
FSPOR997GT3CMAX
Product Information
Product Information
Fabspeed Center Mini Maxflo Performance Exhaust System.

Superb dual-tone sports car sound; throaty and deep at idle and medium speeds.

FEATURES:

• Fits: all Porsche 997 GT3 / GT3RS vehicles 2006-2009
• Increases horsepower and torque by 11 whp and 8 ft-lbs
• Mini Maxflo are radius stress relieved, hydro-formed cases that are pulse TIG welded using 2000 degree ceramic fiber and stainless steel wool packing.
• Constructed from high quality 14-16 gauge, C.N.C. mandrel bent T304L stainless steel - much stronger than all competitors' systems - Better quality then any tuners and guaranteed finest quality available.
• Retains Sport Mode button when used with factory side mufflers
•  Includes Deluxe Dual Style Tips in your choice of finish  
• Simple bolt-on installation
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty.

Superb sports car dual tone sound, throaty and deep at idle and medium speeds. It's docile enough for the wife/girlfriend, but strong dramatic sports car sound when you floor it and go up through the gears!

Complies with factory Porsche warranty. Fits all cars worldwide.

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.

FSPOR997GT3CMAX
99711112160
99711102790
99711102792

The product you are viewing cross references to these numbers
Sport Exhaust Center Section for 997GT3, 997GT3 RS and GT3 Cup cars DesignTek - 99711102790, 99711102792, 99711102793, 99711102797, 99711102780, 99711102799, 55-PS115, 126255
3
Sport Exhaust Center Section for 997GT3, 997GT3 RS and GT3 Cup cars DesignTek
Special Offer
3606609717
Product Information
Product Information
DesignTek Sport Center Section for 997GT3, 997GT3 RS and GT3 Cup cars - Stainless Steel Polished with Matt Black pipes
designtek

This sports centre sections is a direct bolt on replacement, you don't even need to removal of bumper, Proprietary megaphone design- mandrel bent tubing which saves 14 lbs over the stock center section ( GT3 , RS with Ti center muffler saves 5 lbs )
Sport button remains fully functional for every day use, absolutely NO modifications. This system offers a deep aggressive exhaust note over the Porsche stock system the factory primary mufflers, catalyst and exhaust flaps are all retained

The DesignTek Sport Center Section system is a direct bolt on replacement center section which reduces weight, improves sound and offers a mild increase in performance. Porsche has done a wonderful job with the design and manufacture of the factory system with virtually no improvement to be made by installing a complete (mufflers, headers and cats) aftermarket system.

Direct bolt on replacement center section with dual 3.5 stainless tips (factory offers dual 3"). The system is made of mandrel bent T304 stainless tubing which is TIG welded and features a proprietary megaphone design to improve sound in the upper RPM range. The system saves over 14 lbs of weight over the stock ( stock gt3) and (5 lbs over GT3RS with Ti muffler), power is up 3-5 hp on average and now the sound is finally worthy of this magnificent engine.

Fits:
Porsche 997 GT3 / GT3RS 2007>>

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3606609717
99711102790
99711102792
99711102793
99711102797
99711102780
99711102799
55-PS115
126255

The product you are viewing cross references to these numbers
Sports exhaust rear silencer straight pipe Porsche 997 GT3 and GT3 RS
3
Sports exhaust rear silencer straight pipe Porsche 997 GT3 and GT3 RS
TSPOGT3C10.900.AT
Product Information
Product Information
Sports exhaust rear silencer straight pipe Porsche 997 GT3 and GT3 RS
Replaces rear silencer with straight through pipe

tubi

Fits
Porsche 911 GT3 and GT3 RS (997 Gen 1 and Gen 2)
Porsche 911 GT3 and GT3 RS (991.1 and 991.2 upto 2019)

This product can be mounted on every GT3, GTR RS, GT3 RS 4.0 versions, both on 997 Gen 1, Gen 2 and on 991.1 and 991.2 up to 2019

The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

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

SOUND - STRAIGHT PIPE
The straight pipe version guarantees a direct path from the engine, removing all factors which may affect the acoustic tuning


END TIPS NUMBER AND POSITION - 2 CENTRAL
The end tips emerge from the centre

SYSTEM FINISH - POLISHED
Mirror finishes are highly reflective and created by polishing the stainless steel. The polishing process enhances appearance and consistency, making cleaning easier. A special rolling procedure is used. It is essential to remove deep scratches as any surface defects will be very noticeable on the finished product. it improves corrosion resistance. The polishing eradicates crevices where corrosive particles can lodge themselves

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

MAIN PIPE DIMENSION - 65mm
This is the diameter in mm of the main pipe of the exhaust system
Sports exhaust side silencer straight pipe with valves Porsche 997 GT3 and GT3 RS
3
Sports exhaust side silencer straight pipe with valves Porsche 997 GT3 and GT3 RS
TSPOGT3C10.093.A
Product Information
Product Information
Sports exhaust side silencer straight pipe with valves.
Replaces rear side silencers with straight pipes

tubi

Fits:
Porsche 911 GT3 and GT3 RS (997 Gen 1 and Gen 2)
Porsche 911 GT3 and GT3 RS (991.1 and 991.2 upto 2019)

This product can be mounted on every GT3, GTR RS, GT3 RS 4.0 versions, both on 997 Gen 1, Gen 2 and on 991.1 and 991.2 up to 2019

The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

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

SOUND - STRAIGHT PIPE
The straight pipe version guarantees a direct path from the engine, removing all factors which may affect the acoustic tuning

SYSTEM FINISH - POLISHED
Mirror finishes are highly reflective and created by polishing the stainless steel. The polishing process enhances appearance and consistency, making cleaning easier. A special rolling procedure is used. It is essential to remove deep scratches as any surface defects will be very noticeable on the finished product. it improves corrosion resistance. The polishing eradicates crevices where corrosive particles can lodge themselves

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

MAIN PIPE DIMENSION - 65mm
This is the diameter in mm of the main pipe of the exhaust system
DISPLAYING 1 to 10 (of 10 products)
Also found on these pages
About All Silencers / Mufflers

Standard Exhaust Systems – Engineered for Performance, Sound & Longevity

A standard exhaust system is essential for your Porsche’s performance, efficiency, and sound. It controls the flow of exhaust gases from the engine, reduces emissions, manages noise levels, and ensures balanced back pressure for optimal power delivery.

At Design911, we supply standard exhaust systems built from high-grade stainless steel and corrosion-resistant materials. Designed to meet or exceed manufacturer performance standards, these systems deliver the perfect blend of durability, refinement, and performance — ideal for both daily driving and restoration projects.

Each exhaust system is developed to ensure precise fitment, excellent gas flow, and an authentic Porsche exhaust note that retains the car’s original character.

What Do Standard Exhaust Systems Do?

A standard exhaust system performs several vital roles that keep your Porsche running efficiently, cleanly, and safely.

Core Functions:

  • Directs exhaust gases safely away from the engine.
  • Reduces emissions through catalytic converters and silencers.
  • Controls back pressure for balanced performance and fuel efficiency.
  • Minimises engine noise while preserving Porsche’s signature tone.
  • Aids temperature regulation and exhaust scavenging.

A properly maintained exhaust system ensures smooth performance, reduced fuel consumption, and compliance with emissions regulations.

Why Do Exhaust Systems Fail?

Exhaust systems are constantly exposed to heat, moisture, and corrosive gases — all of which take a toll over time.

Common Causes of Failure Include:

  • Corrosion and rust from road salt, condensation, and moisture.
  • Cracked welds or pipes due to vibration and thermal cycling.
  • Internal baffle damage causing rattling or loss of silencing effect.
  • Blocked or leaking joints leading to reduced performance and increased noise.
  • Burnt-out catalytic converters or mufflers reducing efficiency.

Signs of exhaust failure include loud noises, rattling, exhaust odours, or reduced engine performance — all clear indicators that replacement is required.

Why Replace Standard Exhaust Components?

Replacing a worn or damaged exhaust system restores performance, comfort, and efficiency while maintaining your Porsche’s distinctive exhaust tone.

Key Benefits:

  • Restores proper exhaust flow and back pressure.
  • Improves fuel efficiency and power output.
  • Reduces noise and vibration.
  • Ensures emissions compliance and MOT readiness.
  • Built from corrosion-resistant stainless steel for longevity.
  • Direct-fit compatibility for classic and modern Porsche models.

Upgrading to a high-quality standard exhaust preserves the car’s original performance characteristics while ensuring long-lasting reliability.

Highlights:

  • Precision-engineered exhaust systems for Porsche vehicles.
  • Optimised gas flow for power, torque, and efficiency.
  • Durable stainless-steel construction for corrosion resistance.
  • Designed for authentic tone and perfect fitment.
  • Suitable for classic restoration and modern maintenance.
  • Reliable, quiet, and performance-balanced solutions.

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