Please wait… 
Please wait while we process your order,
do not press the back button… 
Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > 964 (911) (1989-1994) > 964 (911) TURBO 3.6L 1991-93 > Exhausts >

All Silencers / Mufflers

All Silencers / Mufflers

Filter by brand
DISPLAYING 1 to 6 (of 6 products)
Exhaust Muffler / Silencer Dual Outlet. Porsche 965 Turbo - 93011303810, 93011303820, 93011303830, 93011125103, 93011125201
3
Exhaust Muffler / Silencer Dual Outlet. Porsche 965 Turbo
FSPOR964TMAX
Product Information
Product Information
Fabspeed Exhaust Muffler / Silencer Dual Outlet.



Bolt-on turbo-back exhaust system providing great sports car sound and improved exhaust flow.

FEATURES:
• Fits: all Porsche 964 Turbo 965 vehicles (1990-1994)
• Includes 4.5" T304 stainless steel waste-gate tip.
• Complete 3.0"/76.5mm tubing for maximum flow, improving horsepower and sound.
• Stainless steel mounting bracket and all necessary hardware for installation included.
• Bolts directly to the stock turbo.
• Direct-bolt on installation, no cutting or welding required.
• Dramatic improvement in turbo spool and sports car sound!

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Related, superseded, cross reference or alternative numbers for comparison.

FSPOR964TMAX
93011303810
93011303820
93011303830
93011125103
93011125201

The product you are viewing cross references to these numbers
Exhaust muffler / silencer race G-Pipe. Porsche 964 / 965 - 92.220S, 92220S, 96411104605, RS411104400 - 1620400700, 92.220S
2
Exhaust muffler / silencer race G-Pipe. Porsche 964 / 965
1620400700
Product Information
Product Information
Exhaust Muffler / Silencer Race G-Pipe.

Dansk Race G-pipe is designed to replace the final silencer box. G-pipe allows fast air flow and weight saving which together produces more BHP. Made from High grade T304 stainless steel. The short pipe also changes the sound to a deeper RS like sound.

Fits:
Porsche 964 C2 / C4 1990-94
Porsche 965 Turbo 1991-94


Polished stainless steel 



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Related, superseded, cross reference or alternative numbers for comparison.

1620400700
92.220S
92220S
96411104605
RS411104400

The product you are viewing cross references to these numbers
Exhaust muffler / silencer race G-Pipe. Porsche 964 / 965 - 96411104605, RS411104400
3
Exhaust muffler / silencer race G-Pipe. Porsche 964 / 965
96422000021
Product Information
Product Information
Unlock the raw air-cooled soundtrack of your Porsche 964 with this G-Pipe Short Exhaust Bypass. Designed as a direct replacement for the factory rear silencer section, this lightweight bypass pipe delivers a sharper throttle response, reduced back pressure, and the unmistakable flat-six exhaust note enthusiasts love.  

Fits:
Porsche 964 C2 / C4 1990-94
Porsche 965 Turbo 1991-94


Polished stainless steel 

Manufactured from high-quality stainless steel for durability and corrosion resistance, the short G-pipe setup offers a more aggressive exhaust tone without the complexity of a full exhaust system upgrade. Ideal for Carrera 2 and Carrera 4 models, it provides a simple bolt-on solution for owners wanting a sportier driving experience and classic air-cooled character.  



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

96422000021
96411104605
RS411104400

The product you are viewing cross references to these numbers
Exhaust muffler / silencer rear box Sports. With TÜV/EEC approval Porsche 964 C2/C4 - 92.270S, 92270S, 92.280S, 92.280S, 1620607300, 1620600900, 96411104604, 96411104605, 9641110460, 96422092280S, 96422092270S - 1620607300, 1620600900
3
Exhaust muffler / silencer rear box Sports. With TÜV/EEC approval Porsche 964 C2/C4
964220922
Product Information
Product Information
Replacement Exhaust Muffler / Silencer Rear box. With TÜV/EEC approval (Carrera 2 / Carrera 4)



2 options:
- Polished Stainless Steel Sports sound + TÜV/EEC approval - Dansk Motorsport
- Painted S/Steel Original Style and sound + TÜV/EEC approval - Dansk

Fits:
Porsche 964 1990-94 C2/ C4 - with TÜV/EEC approval (3.6ltr)
Porsche 964 Turbo 3.3L / 3.6L

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

964220922
92.270S
92270S
92.280S
92.280S
1620607300
1620600900
96411104604
96411104605
9641110460
96422092280S
96422092270S

The product you are viewing cross references to these numbers
Fabspeed Secondary Muffler Bypass Pipe. Porsche 964 Turbo 965 / C2 Turbo (1990-1994) - 96411104605 - FS.POR.964T.SMB
1
Fabspeed Secondary Muffler Bypass Pipe. Porsche 964 Turbo 965 / C2 Turbo (1990-1994)
FSPOR964TSMB
Product Information
Product Information
Fabspeed Secondary Muffler Bypass Pipe.
The Fabspeed Porsche 964 Turbo / 965 / C2 Turbo Secondary Muffler Bypass Pipe is a performance exhaust upgrade designed to replace the factory secondary rear muffler with a freer-flowing stainless-steel pipe.

Fits:
  • Porsche 964 (911) TURBO 3.3L 1990-94
  • Porsche 964 (911) TURBO 3.6L 1990-94  

Designed for both 3.3L and 3.6L Porsche 964 Turbo / 965 models, the bypass pipe reduces restriction in the rear exhaust system while retaining the vehicle's catalytic converter. This provides improved exhaust flow, sharper throttle response, reduced rear-end weight and a more pronounced turbocharged flat-six exhaust note.

Manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel, the pipe is a direct replacement for the original Porsche secondary muffler.

Fabspeed lists 12 HP and 10 lb-ft for this product and states that removing the factory secondary muffler saves approximately 25 lb / 11.4 kg from the rear of the vehicle. Performance figures are manufacturer-reported and actual results will vary according to vehicle specification, condition and testing environment.

What This Product Does:
The secondary muffler is positioned downstream of the catalytic converter and is primarily responsible for reducing exhaust noise before gases exit through the rear exhaust tip.

While effective at controlling sound, the internal chambers and passages of a conventional muffler can also create resistance to exhaust flow.

The Fabspeed Secondary Muffler Bypass Pipe removes this muffler and replaces it with a freer-flowing pipe.

The upgrade is designed to provide:

  • Improved exhaust-gas flow
  • Reduced rear exhaust restriction
  • Improved throttle response
  • Increased performance potential
  • Reduced rear-end weight
  • Stronger turbocharged flat-six exhaust sound
  • More pronounced turbo whistle
  • More direct exhaust path

Improved Exhaust Flow:
Replacing the factory secondary muffler removes internal chambers and sound-control structures from this section of the exhaust.

The resulting straighter exhaust route is designed to reduce restriction.

Potential benefits include:

  • Faster exhaust-gas evacuation
  • Reduced backpressure
  • Improved turbo exhaust flow
  • Sharper throttle response
  • Improved performance throughout the RPM range

The exact difference will depend on the condition and specification of the complete engine and exhaust system.

Enhanced Turbocharged Flat-Six Sound:
Removing the secondary muffler allows considerably more of the 964 Turbo's natural exhaust character to be heard.

The result is a deeper and more pronounced turbocharged flat-six sound, accompanied by increased turbo whistle.

Drivers can expect:

  • Deeper exhaust tone
  • Increased exhaust presence
  • Stronger sound under acceleration
  • More noticeable turbo whistle
  • More pronounced flat-six character
  • Sportier overall exhaust note

The final sound will depend on the rest of the exhaust system fitted to the vehicle.

Why Upgrading Matters:
The original secondary muffler does not need to have failed before this component is installed.

This product is primarily a performance, sound and weight-reduction upgrade.

Reasons for upgrading include:

  • Removes the restrictive factory secondary muffler
  • Improves exhaust flow
  • Improves throttle response potential
  • Manufacturer-listed 12 HP / 10 lb-ft
  • Approx. 25 lb / 11.4 kg rear weight saving
  • Stronger turbocharged flat-six sound
  • More noticeable turbo whistle
  • Retains the catalytic converter
  • T304L stainless-steel construction
  • CNC mandrel-bent tubing
  • Direct replacement for the factory secondary muffler
  • Suitable for both 3.3L and 3.6L 964 Turbo applications

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.

FSPOR964TSMB
96411104605

The product you are viewing cross references to these numbers
Rear final exhaust muffler. Porsche 964 1990-94
1
Rear final exhaust muffler. Porsche 964 1990-94
Special Order item
96411104605
Product Information
Product Information
Rear final exhaust muffler.


Fits:
Porsche 964 Carrera 2 (1990 - 1994)
Porsche 964 Carrera 4 (1989 - 1994)
Porsche 964 RS (1992 - 1992)
Porsche 964 Turbo (1991 - 1994)
DISPLAYING 1 to 6 (of 6 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.

You may also like
Popular Models