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Exhaust Gaskets

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DISPLAYING 1 to 4 (of 13 products)
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GASKETKIT02
Product Information
Product Information

Exhaust Gasket Kit 

Restore proper exhaust sealing and eliminate unwanted exhaust leaks with this comprehensive Exhaust Gasket Kit for Porsche 911 3.2 Carrera models produced between 1984 and 1989. Designed for air-cooled Porsche engines, this complete kit contains all the key gaskets required when servicing, rebuilding or replacing exhaust system components.

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50       

These gaskets create critical gas-tight seals between exhaust components, preventing exhaust gases from escaping before reaching the silencer system. Proper sealing helps maintain engine efficiency, exhaust performance and correct operation of the entire exhaust system.

The kit includes:

  • 6 x Heat Exchanger to Cylinder Head Gaskets
  • 2 x Heat Exchanger Cross Pipe / Pre-Silencer Gaskets
  • 2 x Pre-Silencer to Rear Silencer Gaskets

Whether carrying out an exhaust repair, heat exchanger replacement or full restoration project, replacing old exhaust gaskets is essential to ensure long-term reliability and optimum performance.

What Does an Exhaust Gasket Kit Do?

Exhaust gaskets are designed to seal the connections between exhaust system components, preventing exhaust gases from escaping under pressure.

A properly functioning gasket system helps provide:

  • Leak-free exhaust operation Correct exhaust gas flow
  • Reduced exhaust noise
  • Improved engine efficiency
  • Proper back pressure characteristics
  • Reduced risk of exhaust fumes entering the cabin
  • Reliable long-term exhaust performance

Because exhaust systems operate under extreme heat and pressure, gasket condition is critical to maintaining proper sealing.

Symptoms of Exhaust Gasket Wear or Failure

Exhaust gaskets are constantly exposed to thermal cycling, vibration and corrosive exhaust gases. Over time they can deteriorate, compress, crack or fail.

Common symptoms include:

  • Exhaust blowing noises
  • Ticking or tapping sounds on start-up
  • Increased exhaust noise
  • Exhaust fumes around the engine bay
  • Reduced engine performance
  • Soot deposits around exhaust joints
  • Exhaust smell entering the cabin
  • Visible gasket deterioration during inspection
  • Poor sealing after exhaust system removal

In many cases, exhaust leaks become progressively worse if damaged gaskets are not replaced.

Why Replacement Matters

Replacing exhaust gaskets whenever exhaust components are removed is considered best practice maintenance.

Benefits include:

  • Restores leak-free exhaust operation
  • Eliminates exhaust gas leaks
  • Improves engine efficiency
  • Reduces unwanted exhaust noise
  • Protects surrounding engine components
  • Helps maintain correct exhaust flow characteristics
  • Supports safe vehicle operation
  • Improves reliability of exhaust repairs

For classic air-cooled Porsche 911 models, maintaining a properly sealed exhaust system is essential for both performance and driving enjoyment.



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

GASKETKIT02
93011119308
93011119206
91111119102
93011119112

The product you are viewing cross references to these numbers
EXHFITTING.911.3
Product Information
Product Information
Exhaust Heat Exchanger Mounting Kit.

The Exhaust Heat Exchanger Mounting Kit is a comprehensive genuine quality hardware kit designed to securely install and mount the exhaust heat exchangers on classic Porsche models.

Kit Contents:
x6 Exhaust Gasket Heat Exchanger Manifold (93011119112)
x6 Exhaust Hex Nut For Heat Exchanger (
99908500103)
x6 Exhaust Bolt (
90007428203)
x6 Exhaust Nut (90091009701)
x2 Exhaust Gasket Heat Exchangers To Crossover Or Pre-Silencer (93011119206)
x1 Exhaust Gasket Crossover Pipe To Pre-Silencer (93011119308)
x6 Exhaust Nut (9000760250C) 

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50  

What This Product Does:

  • Secures heat exchangers to the engine and exhaust system
  • Maintains proper alignment of exhaust components
  • Ensures a gas-tight and stable installation
  • Withstands high temperatures and vibration
  • Supports efficient heat transfer for cabin heating systems  

Symptoms Of Wear Or Failure:
  • Exhaust leaks around the heat exchanger connections
  • Rattling or loose exhaust components
  • Broken or corroded studs and nuts
  • Difficulty maintaining proper exhaust alignment
  • Reduced heating efficiency inside the cabin
  • Visible rust or seized fasteners

Why Replacement Matters:
  • Ensures secure and stable installation of heat exchangers
  • Prevents exhaust leaks and loss of efficiency
  • Maintains correct exhaust alignment and system integrity
  • Reduces risk of component damage due to movement or stress
  • Simplifies installation during restoration or repair projects
  • Improves long-term reliability, especially on classic vehicles  



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

EXHFITTING.911.3
93011119112
99908500103
90007428203
90091009701
93011119206
93011119308
9000760250C

The product you are viewing cross references to these numbers
EXHFITTING.911.4
Product Information
Product Information
Exhaust Heat Exchanger Mounting Kit.

This Exhaust Heat Exchanger Mounting Kit is a comprehensive OE MATCH quality hardware kit designed to securely install and mount the exhaust heat exchangers on classic Porsche models.

Kit Contents:
x6 Exhaust Gasket Heat Exchanger Manifold (93011119112/1)
x6 Exhaust Hex Nut For Heat Exchanger (
99908500103/1)
x6 Exhaust Bolt (
90007428203/1)
x6 Exhaust Nut (90091009701/1)
x2 Exhaust Gasket Heat Exchangers To Crossover Or Pre-Silencer (93011119206/1)
x1 Exhaust Gasket Crossover Pipe To Pre-Silencer (93011119308/1)
x6 Exhaust Nut (9000760250C) 

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50  

What This Product Does:

  • Secures heat exchangers to the engine and exhaust system
  • Maintains proper alignment of exhaust components
  • Ensures a gas-tight and stable installation
  • Withstands high temperatures and vibration
  • Supports efficient heat transfer for cabin heating systems  

Symptoms Of Wear Or Failure:
  • Exhaust leaks around the heat exchanger connections
  • Rattling or loose exhaust components
  • Broken or corroded studs and nuts
  • Difficulty maintaining proper exhaust alignment
  • Reduced heating efficiency inside the cabin
  • Visible rust or seized fasteners

Why Replacement Matters:
  • Ensures secure and stable installation of heat exchangers
  • Prevents exhaust leaks and loss of efficiency
  • Maintains correct exhaust alignment and system integrity
  • Reduces risk of component damage due to movement or stress
  • Simplifies installation during restoration or repair projects
  • Improves long-term reliability, especially on classic vehicles  



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

EXHFITTING.911.4
93011119112
99908500103
90007428203
90091009701
93011119206
93011119308
9000760250C

The product you are viewing cross references to these numbers
911111191KIT
Product Information
Product Information
Gasket kit rear silencer. 

Fits:
Porsche 911 - 1975 to 1989
For 2.7ltr / 3.0ltr / 3.2ltr engine

This kit consists of a flange gasket, three stainless steel screws and three nuts for sealing the exhaust silencer flange.
The seal is suitable for the Porsche 911 G models from 1975 to 1989 to connect the pre-silencer to the rear silencer.



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

911111191KIT
90007428202
9009100970C
91111119102
91111119101
N0402222
90091009702
90091009701

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 13 products)
1 2 3 4
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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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