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Porsche > 996 (911) (1997-2005) > Exhausts >

Exhaust Gaskets

Exhaust Gaskets

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DISPLAYING 1 to 16 (of 28 products)
1 2
COMPLETE Exhaust Fitting Kit . Porsche (911) 996 C2 /C4 / C4S - 9990750710A, 99611110755, 99611111350, 99908405202, 90007428702, 99951108700, 90037803301, 90037802209, 90003110501, 90037818809, 90037818709, 99711152000
3
COMPLETE Exhaust Fitting Kit . Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.3
Product Information
Product Information
COMPLETE Exhaust Fitting Kit.
Contains all necessary gaskets, clamps, sleeves, nuts, bolts and washers. Ideal when you change the whole exhaust system on your Porsche 996 - manifolds, catalytic converters and silencers at the same time.

Fits:

Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01
Porsche 996 C2 3.6L 09/01-2005
Porsche 996 C4 3.6L 09/01-2005
Porsche 996 C4S 3.6L 09/01-2005


*Click on the image to see a large parts diagram.

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Related, superseded, cross reference or alternative numbers for comparison.

EXHFITTING.996.1.3
9990750710A
99611110755
99611111350
99908405202
90007428702
99951108700
90037803301
90037802209
90003110501
90037818809
90037818709
99711152000

The product you are viewing cross references to these numbers
COMPLETE Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 C2 /C4 / C4S - 9990750710A, 99611110755, 99611111350, 99908405202, 90007428702, 99951108700, 90037803301, 90037802209, 90003110501, 90037818809, 90037818709, 99711152000
3
COMPLETE Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.3T
Product Information
Product Information
COMPLETE Exhaust Fitting Kit with Titanium clamps
Contains all necessary gaskets,  Titanium clamps, sleeves, nuts, bolts and washers. Ideal when you change the whole exhaust system on your Porsche 996 - manifolds, catalytic converters and silencers at the same time.

Fits:

Porsche 996 C2 3.4L 1997-08/01
Porsche 996 C4 3.4L 1997-08/01
Porsche 996 C2 3.6L 09/01-2005
Porsche 996 C4 3.6L 09/01-2005
Porsche 996 C4S 3.6L 09/01-2005

*Click on the image to see a large parts diagram.

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Related, superseded, cross reference or alternative numbers for comparison.

EXHFITTING.996.1.3T
9990750710A
99611110755
99611111350
99908405202
90007428702
99951108700
90037803301
90037802209
90003110501
90037818809
90037818709
99711152000

The product you are viewing cross references to these numbers
Exhaust Catalyst fitting kit - Porsche 996 C2 / C4 - 99711152000, 99611110800, 99611122002, 99951108700
1
Exhaust Catalyst fitting kit - Porsche 996 C2 / C4
EXHFITTING.996.1.1
Product Information
Product Information
Exhaust Catalyst fitting kit. steel camps & component with stainless steel cat bolts and nuts.

oematch


Fits:
Porsche 996 Carrera 3.4L
Porsche 996 Carrera 3.6L

Kit includes:
2 x Exhaust sleeve catalytic converter to silencer. Porsche 996 / 997 (99711152000/1 
2 x Exhaust manifold to cat gasket. Porsche 996 C2 / C4 (99611111350/1 
2 x Oil pressure relief screw plug. Porsche 911 / 964 / 993 / 996T / 997T (99906402601/1 
2 x Sealing ring N0138322 (N0138322 
6 x Exhaust manifold to catalytic converter bolt. Porsche 986 Boxster / 996 - Stainless steel (90007428702/1 
6 x Exhaust Lock Nut for Bolt. Porsche 964 (99908405202/1 2 x Hexagon-head bolt (90008308000 
2 x Sealing Ring (90012305020 



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

EXHFITTING.996.1.1
99711152000
99611110800
99611122002
99951108700

The product you are viewing cross references to these numbers
Exhaust Catalysts Fitting Kit with Titanium clamps. Porsche (911) 996 C2 /C4 / C4S - 99611110800, 99611122002, 99951108700
1
Exhaust Catalysts Fitting Kit with Titanium clamps. Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.1T
Product Information
Product Information
Exhaust Catalysts Fitting Kit with Titanium clamps. 


Fits:
Porsche 996 Carrera 3.4L
Porsche 996 Carrera 3.6L

Kit Includes:
2 x Exhaust sleeve Titanium catalytic converter to silencer. Porsche 996 / 997 (99711152000
2 x Exhaust manifold to cat gasket. Porsche 996 C2 / C4 (99611111350
2 x Oil pressure relief screw plug. Porsche 911 / 964 / 993 / 996T / 997T (99906402601
2 x Sealing ring N0138322 (N0138322 
6 x Exhaust manifold to catalytic converter bolt. Porsche 986 Boxster / 996 - Stainless steel (90007428702
6 x Exhaust Lock Nut for Bolt. Porsche 964 (99908405202
2 x Hexagon-head bolt (90008308000 
2 x Sealing Ring (90012305020



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

EXHFITTING.996.1.1T
99611110800
99611122002
99951108700

The product you are viewing cross references to these numbers
Exhaust Fitting Kit Rear Silencers. Porsche (911) 996 C2 /C4 / C4S - 99611110800, 99611122002, 99951108700
2
Exhaust Fitting Kit Rear Silencers. Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.2
Product Information
Product Information
Rear Silencer Exhaust Fitting Kit.*
Contains all necessary clamps, sleeves, nuts, bolts and washers. Ideal when you change the rear exhaust silencers on your Porsche 996

*Brackets and holders not included but available separately

Fits:
Porsche 996 Carrera 3.4L
Porsche 996 Carrera 3.6L

*Click on the image to see a large parts diagram.

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

EXHFITTING.996.1.2
99611110800
99611122002
99951108700

The product you are viewing cross references to these numbers
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 C2 /C4 / C4S - 99611110755, 99611111350, 99711152000, 99611110800
2
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.7T
Product Information
Product Information
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 C2 /C4 / C4S

Fits:
Porsche 996 C2 3.4L 1997-08/01 
Porsche 996 C4 3.4L 1997-08/01 
Porsche 996 C2 3.6L 09/01-2005 
Porsche 996 C4 3.6L 09/01-2005 
Porsche 996 C4S 3.6L 09/01-2005


Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)

*Click on the image to see a large parts diagram.



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

EXHFITTING.996.1.7T
99611110755
99611111350
99711152000
99611110800

The product you are viewing cross references to these numbers
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 GT3 - 99611110771, 99611111350, 99711152000, 99611110800
2
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 GT3
EXHFITTING.996.GT3.1T
Product Information
Product Information
Exhaust Fitting Kit with Titanium clamps . Porsche (911) 996 GT3

Fits:
Porsche 996 GT3

Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)

*Click on the image to see a large parts diagram.



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

EXHFITTING.996.GT3.1T
99611110771
99611111350
99711152000
99611110800

The product you are viewing cross references to these numbers
Exhaust Fitting Kit with Titanium Clamps for Rear Silencers. Porsche (911) 996 C2 /C4 / C4S - 99611110800, 99611122002, 99951108700
2
Exhaust Fitting Kit with Titanium Clamps for Rear Silencers. Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.2T
Product Information
Product Information
Rear Silencer Exhaust Fitting Kit with Titanium Clamps
Contains all necessary  Titanium Clamps , sleeves, nuts, bolts and washers. Ideal when you change the rear exhaust silencers on your Porsche 996

Fits:
Porsche 996 Carrera 3.4L
Porsche 996 Carrera 3.6L

*Click on the image to see a large parts diagram.

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

EXHFITTING.996.1.2T
99611110800
99611122002
99951108700

The product you are viewing cross references to these numbers
Exhaust Fitting Kit. Porsche (911) 996 C2 /C4 / C4S - 99611110755, 99611111350, 99711152000, 99611110800
2
Exhaust Fitting Kit. Porsche (911) 996 C2 /C4 / C4S
EXHFITTING.996.1.7
Product Information
Product Information
Exhaust Fitting Kit.
The OE Match Exhaust Fitting Kit is a comprehensive installation kit designed to provide the essential hardware required for the secure installation or replacement of the exhaust system on compatible Porsche models. Manufactured to OE specifications for fit, strength and durability, the kit contains the necessary fasteners, clamps, nuts, bolts, washers and sealing components (where applicable) to ensure a safe, leak-free exhaust installation.  

Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)

Fits:
  • Porsche 996 C2 3.4L 1997-08/01
  • Porsche 996 C4 3.4L 1997-08/01
  • Porsche 996 C2 3.6L 09/01-2005
  • Porsche 996 C4 3.6L 09/01-2005
  • Porsche 996 C4S 3.6L 09/01-2005  


Manufactured from high-quality corrosion-resistant materials, each component is engineered to withstand the extreme temperatures, vibration and harsh environmental conditions experienced by the exhaust system. Ideal for replacing worn or corroded original hardware, this fitting kit helps ensure a professional-quality installation while reducing the risk of exhaust leaks and loose components.  

What This Product Does:

  • Provides the essential hardware required for exhaust system installation.
  • Secures exhaust components together safely and correctly.
  • Helps create leak-free exhaust connections.
  • Replaces worn, corroded or seized original fixings.
  • Supports correct exhaust alignment and fitment.
  • Reduces exhaust vibration and movement.
  • Helps simplify exhaust repair and replacement work.
  • Forms an essential part of a complete exhaust system installation.

Symptoms Of Wear Or Failure:
  • Exhaust gas leaks.
  • Rattling or vibrating exhaust components.
  • Loose exhaust system sections.
  • Corroded or seized nuts and bolts.
  • Broken clamps or mounting hardware.
  • Exhaust blowing noises.
  • Difficulty removing old exhaust components during servicing.
  • Misaligned exhaust system.
  • Increased vibration through the vehicle.
  • Visible rust or deterioration of fixing hardware.

Why Replacement Matters:
  • Exhaust fittings operate in one of the harshest environments on the vehicle, where they are exposed to extreme heat, moisture, road salt and constant vibration. Over time, nuts, bolts, clamps and other fixings can corrode, seize or lose their clamping force, making the exhaust system susceptible to leaks and movement.
  • Reusing old or damaged hardware when fitting a replacement exhaust can result in poor sealing, premature component failure and increased installation time. Loose or leaking exhaust joints may lead to unwanted noise, reduced engine performance and potential exhaust gas leakage.
  • Replacing the complete exhaust fitting hardware during installation ensures secure mounting, correct alignment and reliable sealing of the exhaust system. The OE Match Exhaust Fitting Kit provides factory-style fitment, durable corrosion-resistant components and dependable long-term performance, making it the ideal choice for exhaust repairs, upgrades and routine maintenance on your Porsche.



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

EXHFITTING.996.1.7
99611110755
99611111350
99711152000
99611110800

The product you are viewing cross references to these numbers
Exhaust Fitting Kit. Porsche (911) 996 GT3 - 99611110771, 99611111350, 99711152000, 99611110800
2
Exhaust Fitting Kit. Porsche (911) 996 GT3
EXHFITTING.996.GT3.1
Product Information
Product Information
Exhaust Fitting Kit. Porsche (911) 996 GT3

Fits:
Porsche 996 GT3

Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)

*Click on the image to see a large parts diagram.

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

EXHFITTING.996.GT3.1
99611110771
99611111350
99711152000
99611110800

The product you are viewing cross references to these numbers
Exhaust manifold fitting kit for Porsche (911) 996 3.4L - 99611110755, 99611111350
2
Exhaust manifold fitting kit for Porsche (911) 996 3.4L
EXHFITTING.996.1.4
Product Information
Product Information
Manifold fitting kit.

Contains all necessary gaskets, nuts & bolts.

Fits:
Porsche 996 Carrera 3.4L

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

EXHFITTING.996.1.4
99611110755
99611111350

The product you are viewing cross references to these numbers
Exhaust manifold fitting kit for Porsche (911) 996 3.6L - 99611110755, 99611111350
2
Exhaust manifold fitting kit for Porsche (911) 996 3.6L
EXHFITTING.996.2.1
Product Information
Product Information
Manifold fitting kit.

Contains all necessary gaskets, nuts & bolts.

Fits:
Porsche 996 Carrera 3.6L

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

EXHFITTING.996.2.1
99611110755
99611111350

The product you are viewing cross references to these numbers
Exhaust manifold gasket, nut and bolt kit. Porsche 996 GT3
5
Exhaust manifold gasket, nut and bolt kit. Porsche 996 GT3
MANIFOLDKIT996GT3
Product Information
Product Information
Exhaust manifold fitting kit.

Contains manifold to head studs, gaskets and manifold to turbo gasket and lock nuts.
Bolts and nuts are made out of Titanium. Gaskets are OEM.

Fits:
Porsche 996 GT3 1999-2005


Exhaust manifold gasket, nut and bolt kit. Porsche 996TT
6
Exhaust manifold gasket, nut and bolt kit. Porsche 996TT
MANIFOLDKIT996TT
Product Information
Product Information
Exhaust manifold fitting kit.

Contains manifold to head studs, gaskets and manifold to turbo gasket and lock nuts.
Bolts and nuts are made out of Titanium. Gaskets are OEM.

Fits:
Porsche 996 Turbo 2001-2005

Exhaust Gasket for Manifold. Porsche 996 Turbo - 99611121570
3
Exhaust Gasket for Manifold. Porsche 996 Turbo
Special Order item
99611121570
Product Information
Product Information
Exhaust Gasket for Manifold.


porsche

Fits:
Porsche 996 Turbo

Click picture for large parts diagram.
Diagram ref no 3

Price is for each.



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

99611121570
99611121570

The product you are viewing cross references to these numbers
Exhaust gasket for manifold. Porsche 996 Turbo - 99611121770 - 99611121770
2
Exhaust gasket for manifold. Porsche 996 Turbo
Special Order item
99611121770
Product Information
Product Information
Exhaust gasket for manifold.
Price is for each.

porsche

Fits:
Porsche 996 Turbo

Diagram ref no 6


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

99611121770
99611121770

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 28 products)
1 2
Also found on these pages
About Exhaust Gaskets

Exhaust Gaskets for Porsche | Precision Seal & Performance Reliability

Exhaust gaskets are crucial components in your Porsche’s exhaust system, ensuring a tight, leak-free seal between joints and flanges. They prevent exhaust gases from escaping, maintain correct back pressure, and protect nearby components from heat and harmful emissions.

At Design911, we supply a full range of exhaust gaskets designed for Porsche vehicles — from classic air-cooled 911s to high-performance modern models. Manufactured from high-temperature, corrosion-resistant materials, these gaskets deliver durability and a perfect seal under extreme conditions.

Whether you’re installing a new exhaust, replacing worn components, or upgrading for performance gains, our high-quality Porsche exhaust gaskets guarantee a reliable fit and long-lasting performance.

What Do Exhaust Gaskets Do?

Exhaust gaskets form airtight seals between the various components of the exhaust system, such as manifolds, headers, pipes, and catalytic converters. They play a vital role in maintaining system integrity, performance, and emissions control.

Core Functions:

  • Seals exhaust joints to prevent leaks and gas escape.
  • Maintains back pressure for efficient engine performance.
  • Reduces exhaust noise and vibration.
  • Protects against heat and gas damage.
  • Ensures compliance with emissions standards.

A properly fitted gasket ensures that exhaust gases are channelled efficiently through the system — essential for power, fuel economy, and emissions control.

Why Do Exhaust Gaskets Fail?

Over time, exhaust gaskets are subjected to extreme heat, pressure, and vibration, which can lead to wear or failure.

Common Causes of Failure Include:

  • Thermal expansion and contraction causing cracks or deformation.
  • Corrosion from moisture or road salt exposure.
  • Improper installation or over-tightening.
  • Aging and fatigue of gasket material.
  • Exhaust vibration leading to joint loosening.

When a gasket fails, you may notice hissing or tapping noises, a burning smell, or loss of engine performance. Exhaust leaks can also increase harmful emissions and damage surrounding components.

Why Replace Your Exhaust Gaskets?

Replacing worn or leaking exhaust gaskets is essential for maintaining your Porsche’s performance, efficiency, and emissions compliance.

Key Benefits:

  • Restores proper exhaust sealing and flow efficiency.
  • Reduces exhaust noise and prevents gas leaks.
  • Improves performance and throttle response.
  • Prevents damage to manifolds, sensors, and nearby parts.
  • Crafted from high-grade composite or metal-reinforced materials.
  • Exact-fit design for Porsche 911, Cayman, Boxster, Panamera, Macan and more.

Whether you’re rebuilding your exhaust system or performing routine maintenance, new gaskets ensure reliable sealing and long-term durability.

Highlights:

  • Precision-engineered exhaust gaskets for all Porsche models.
  • High-temperature, corrosion-resistant materials for durability.
  • Ensures a tight, leak-free exhaust seal.
  • Improves performance and emissions control.
  • Perfect fit for performance and restoration projects.
  • Essential for smooth, quiet, and efficient exhaust operation.

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