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Porsche > Cayenne 9PA (955) 2003-2006 > 955 Cayenne Turbo S 4.5L 2006>> > Exhausts >

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All Silencers / Mufflers

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DISPLAYING 1 to 4 (of 4 products)
Fabspeed Exhaust Performance Package WITHOUT ECU Upgrade. Porsche 955 Turbo / Turbo S (2002-2007) - 95511112120, 95511112121, 95511112122 - FS.POR.955T.MAXP, FS.POR.955T.PSC, FS.POR.955T.CB
1
Fabspeed Exhaust Performance Package WITHOUT ECU Upgrade. Porsche 955 Turbo / Turbo S (2002-2007)
FSPOR955TSPKGP
Product Information
Product Information
Fabspeed Exhaust Performance Package WITHOUT ECU Upgrade.
The Fabspeed Performance Package is a comprehensive exhaust, intake designed for the 2002–2007 Porsche 955 Cayenne Turbo and Turbo S.

Kit Contents:
  • Maxflo Performance Mufflers Incl Deluxe Quad Style Tips
  • Sport Catalytic Converters
  • Secondray Catbypass Pipes
  • BMC F1 Air Filter

Fits:
  • Porsche 955 Cayenne Turbo 4.5L 2002-06
  • Porsche 955 Cayenne Turbo S 4.5L 2006>>  

Rather than modifying a single area of the vehicle, the package combines several complementary performance components to improve the way the twin-turbocharged V8 draws in air, expels exhaust gases and manages engine performance.

The package includes Maxflo Performance Mufflers with Deluxe Quad Style Tips, Sport Catalytic Converters, Secondary Cat Bypass Pipes, a BMC F1 Replacement Air Filter.

Together, these components are designed to reduce intake and exhaust restriction, improve engine breathing, sharpen response, reduce weight and produce a deeper, throatier V8 exhaust note.

The Fabspeed exhaust components are manufactured from 14–16 gauge mirror-polished T304 stainless steel, and Fabspeed lists approximately 60 lb of weight reduction compared with the corresponding factory components.

What This Product Does:
An internal-combustion engine must efficiently draw in clean air and expel combustion gases.

This becomes especially important in a high-output twin-turbocharged engine, where both the intake and exhaust systems must handle substantial airflow under load.

The Fabspeed package addresses several areas simultaneously:

  • BMC F1 Air Filter – improves intake airflow while maintaining engine filtration.
  • Sport Catalytic Converters – provide a performance-oriented alternative to the original catalyst arrangement.
  • Secondary Cat Bypass Pipes – eliminate the secondary catalytic converters to further reduce exhaust restriction.
  • Maxflo Performance Mufflers – improve rear exhaust flow while creating a deeper V8 exhaust note.

The result is a coordinated performance package rather than a single-component upgrade.

Performance:
The current Fabspeed product listing specifies:

Horsepower: TBD
Torque: TBD
Weight Reduction: Approx. 60 lb

Because package-specific horsepower and torque figures are currently listed as TBD, numerical power gains should not be assumed.

Actual performance will depend on factors including:

  • Engine condition
  • Turbocharger condition
  • Fuel quality
  • Intake condition
  • Exhaust configuration
  • Other modifications
  • Ambient conditions
  • Testing equipment and methodology

Why Upgrading Matters:
The original components do not need to be faulty or worn before this package is installed.

It is primarily a comprehensive performance upgrade.

Reasons for upgrading include:

  • Maxflo Performance Mufflers
  • Sport Catalytic Converters
  • Secondary Cat Bypass Pipes
  • BMC F1 Replacement Air Filter
  • T304 stainless-steel construction
  • Approx. 60 lb manufacturer-listed weight reduction
  • Reduced intake restriction
  • Reduced exhaust restriction
  • Improved engine breathing
  • Increased performance potential
  • Sharper response
  • Deeper twin-turbo V8 sound
  • Deluxe Quad Style polished exhaust tips



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

FSPOR955TSPKGP
95511112120
95511112121
95511112122

The product you are viewing cross references to these numbers
Exhaust Maxflo Performance Exhaust System. Porsche 955 Turbo / Turbo S - 95511112120, 95511112121, 95511112122 - FS.POR.955T.MAXC, FS.POR.955T.MAXP, FS.POR.955T.MAX, FS.POR.955T.MAXB
2
Exhaust Maxflo Performance Exhaust System. Porsche 955 Turbo / Turbo S
FSPOR955TMAX
Product Information
Product Information
Fabspeed Exhaust Maxflo Performance Exhaust System.



Increase power and save weight with a throatier and deeper exhaust note throughout the RPM range; includes Polished Chrome Deluxe Quad-Style Tips

FEATURES:
• Fits all Porsche 955 Cayenne Turbo/Turbo S vehicles (2002-2007)
• Adds 8 wheel horsepower increasing throttle response
• Saves 35 lbs from the vehicles versus heavy factory mufflers
• Includes Fabspeed's Deluxe Quad-Style Tips in Polished Chrome; also compatible with OEM tips
• Improves sports car sound and power throughout the RPM range
• Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
• Direct bolt-on replacements for the restrictive factory mufflers
• 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.

FSPOR955TMAX
95511112120
95511112121
95511112122

The product you are viewing cross references to these numbers
Sports exhaust rear silencer Porsche 955 Cayenne S - 04090581320
1
Sports exhaust rear silencer Porsche 955 Cayenne S
04090581320
Product Information
Product Information
Sports exhaust rear silencer for the Porsche 955 Cayenne S 2002-2007



Fits
4.5Ltr
Porsche Cayenne (955) S 2002-2007

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

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 NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side

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 of the main pipe of the exhaust system

EXHAUST VALVE - NO VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the pilot via the specific control systems is no longer possible

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

04090581320
04090581320

The product you are viewing cross references to these numbers
Sports exhaust rear silencer Porsche 955 Cayenne turbo - 04090571320
1
Sports exhaust rear silencer Porsche 955 Cayenne turbo
04090571320
Product Information
Product Information
Sports exhaust rear silencer for the Porsche 955 Cayenne turbo



Fits:
Porsche Cayenne (955) Turbo 2002-2006

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

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 NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side

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 of the main pipe of the exhaust system

EXHAUST VALVE - NO VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the pilot via the specific control systems is no longer possible

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

04090571320
04090571320

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 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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