Exhaust Gaskets

Diagram ref no. 8

The OE MATCH Exhaust Gasket, Cross Over Pipe to Pre-Silencer is a high-quality replacement sealing gasket designed to provide a secure, gas-tight connection between the exhaust crossover pipe and pre-silencer assembly. Engineered to OE specifications, this gasket prevents exhaust gas leaks while maintaining correct exhaust flow, backpressure characteristics, and overall exhaust system efficiency.

Fits:

• Porsche 911 1965-1968 2.0L / 912 SWB (F)
• Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93

• Exhaust blowing, hissing, or ticking noises
• Visible exhaust gas leaks around flange connections
• Soot or carbon deposits near the gasket area
• Exhaust fumes or odours around the vehicle
• Increased exhaust noise levels
• Reduced exhaust system efficiency
• Difficulty maintaining a proper seal after exhaust repairs
• Potential emissions compliance issues caused by exhaust leaks

• Restores a reliable gas-tight exhaust seal
• Prevents exhaust leaks and excessive noise
• Maintains proper exhaust flow characteristics
• Supports engine efficiency and performance
• Reduces the risk of exhaust fumes escaping from the system
• Protects surrounding components from hot exhaust gases
• Helps maintain emissions system effectiveness 
  
• Ensures long-term durability and reliability of the exhaust system

The OE MATCH Exhaust Gasket Heat Exchanger Manifold is a high-quality replacement sealing gasket designed to create a secure, gas-tight connection between the exhaust manifold and heat exchanger assembly. Engineered to OE specifications, this gasket prevents exhaust gas leaks while maintaining correct exhaust flow, engine efficiency, and exhaust system performance.
Sold Each.

Fits:

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

Manufactured from durable, heat-resistant materials, the gasket is designed to withstand extreme exhaust temperatures, pressure fluctuations, and constant thermal cycling. It is an essential component whenever exhaust manifolds, heat exchangers, or related exhaust system components are removed, serviced, or replaced.

What This Product Does:

• Provides a gas-tight seal between the exhaust manifold and heat exchanger
• Prevents exhaust gas leaks at critical exhaust system connections
• Maintains proper exhaust flow and backpressure characteristics
• Supports engine performance and combustion efficiency
• Reduces unwanted exhaust noise caused by leaking joints
• Withstands high temperatures and exhaust system vibration

• Ticking, blowing, or hissing noises from the exhaust system
• Visible exhaust leaks around manifold or heat exchanger connections
• Soot or carbon deposits near exhaust flanges
• Exhaust fumes or smells in the engine bay or cabin
• Reduced engine efficiency or performance
• Increased exhaust noise levels
• Potential emissions test failures
• Difficulty achieving a proper seal after exhaust system repairs

• Restores a reliable gas-tight exhaust seal
• Prevents exhaust leaks and excessive exhaust noise
• Maintains correct exhaust flow and system efficiency
• Supports optimal engine performance and fuel efficiency
• Reduces the risk of exhaust fumes escaping into surrounding areas
• Protects nearby components from exposure to hot exhaust gases
• Helps maintain emissions compliance
• Ensures long-term reliability and durability of the exhaust system

The OE MATCH Exhaust Gasket – Heat Exchangers to Crossover or Pre-Silencer is a high-quality replacement sealing gasket designed to create a gas-tight connection between the exhaust heat exchangers and the crossover pipe or pre-silencer assembly. Engineered to OE specifications, this gasket helps prevent exhaust gas leaks while maintaining proper exhaust flow, system efficiency, and engine performance.
Sold Each.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97  

Operating in an extremely high-temperature environment, the gasket is manufactured from durable heat-resistant materials capable of withstanding continuous thermal cycling and exhaust system pressures. It is an essential component whenever exhaust system sections are removed, repaired, or replaced.

What This Product Does:

• Creates a gas-tight seal between exhaust components
• Prevents exhaust gas leaks at the heat exchanger connection
• Maintains proper exhaust flow and backpressure
• Supports engine performance and efficiency
• Reduces exhaust noise caused by leaking joints
• Withstands high exhaust temperatures and thermal cycling

• Exhaust blowing or ticking noises from the engine area
• Visible exhaust gas leaks around gasket joints
• Exhaust fumes or smells entering the cabin
• Reduced engine efficiency or performance
• Soot or carbon deposits around the exhaust flange
• Increased exhaust noise levels
• Failed emissions inspections in severe cases
• Difficulty maintaining a proper exhaust system seal after repairs

• Restores a proper gas-tight exhaust seal
• Prevents exhaust leaks and unwanted noise
• Maintains correct exhaust flow characteristics
• Helps preserve engine performance and efficiency
• Reduces the risk of exhaust fumes entering the cabin
• Protects surrounding components from hot exhaust gases
• Supports emissions system performance and compliance
• Ensures reliable long-term operation of the exhaust system

The OE MATCH Exhaust Rear Silencer Gasket is a high-quality replacement sealing gasket designed to provide a secure, gas-tight connection between the rear silencer (muffler) and adjoining exhaust system components. Engineered to OE specifications, this gasket helps prevent exhaust leaks, maintain correct exhaust flow, and ensure efficient operation of the exhaust system.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50  

Manufactured from durable, heat-resistant materials, the gasket is designed to withstand extreme exhaust temperatures, pressure fluctuations, and continuous thermal cycling. It is an essential replacement component whenever the rear silencer is removed, replaced, or serviced, helping to restore the integrity of the exhaust system.

What This Product Does:

• Creates a gas-tight seal between the rear silencer and exhaust system components
• Prevents exhaust gas leaks at connection points
• Maintains proper exhaust flow and system efficiency
• Helps reduce unwanted exhaust noise
• Supports optimal engine performance and emissions control
• Withstands high exhaust temperatures and vibration

• Exhaust blowing, ticking, or hissing noises
• Visible exhaust gas leaks around exhaust joints
• Soot or carbon deposits near the gasket area
• Increased exhaust noise levels
• Exhaust fumes or odours around the vehicle
• Reduced exhaust system efficiency
• Failed emissions inspections in severe cases
• Difficulty achieving a proper seal after exhaust repairs

• Restores a proper gas-tight exhaust seal
• Prevents exhaust leaks and excessive noise
• Maintains correct exhaust flow characteristics
• Supports engine efficiency and performance
• Reduces the risk of exhaust fumes escaping from the system
• Protects surrounding components from hot exhaust gases
• Helps maintain emissions compliance
• Ensures long-term durability and reliability of the exhaust system

The Porsche Exhaust Mounting Kit – OE Match (Part Number: PCG91121100/1) is a replacement fitting and fastening kit designed to securely install and support the exhaust heat exchangers on selected classic Porsche 911 models.

• Porsche 911 2.7L / 3.0L / *3.2L 08/73-07/85

Designed as an alternative to the original Porsche exhaust mounting kit, this OE Match replacement provides the necessary mounting hardware for correctly securing compatible exhaust components, helping maintain a stable installation and reliable sealing at the exhaust connections.

The exhaust mounting system operates in an extremely demanding environment, exposed to high temperatures, constant engine vibration, moisture and road contamination. Over time, original mounting bolts, nuts, studs and other fastening components can become corroded, weakened, seized or damaged during exhaust removal.

Replacing worn or deteriorated exhaust mounting hardware helps maintain secure exhaust connections, minimise unwanted vibration and reduce the likelihood of exhaust gas leaks.

Ideal for exhaust system repairs, heat exchanger replacement, engine maintenance and classic Porsche restoration projects, this OE Match mounting kit offers a practical and cost-effective alternative to Genuine Porsche-branded mounting hardware.

What This Product Does:
The exhaust mounting kit provides the fastening components required to securely attach compatible exhaust heat exchangers and associated exhaust components to the engine.

Correctly installed exhaust mounting hardware maintains the clamping force required for secure connections and effective sealing between the exhaust components and the cylinder heads.

Its main functions include:

• Securing exhaust components: Provides the mounting hardware needed to correctly fasten heat exchangers and associated exhaust fittings.
• Maintaining exhaust joint sealing: Helps apply consistent clamping pressure to the exhaust gaskets, reducing the risk of exhaust gas leakage.
• Supporting exhaust system stability: Keeps exhaust components correctly positioned during engine operation.
• Reducing vibration and rattling: Helps prevent unwanted movement caused by loose or deteriorated fasteners.
• Withstanding high operating temperatures: Provides mounting hardware suitable for the demanding thermal conditions surrounding the exhaust system.
• Supporting reliable exhaust performance: Maintains secure exhaust connections for effective exhaust gas flow.
• Facilitating exhaust repairs: Provides replacement fastening components during heat exchanger installation, exhaust maintenance or engine restoration.

Common signs of worn or damaged exhaust mounting components include:

• Corroded or rusted fasteners: Exhaust mounting nuts, bolts and studs may become heavily corroded, reducing their strength and making removal difficult.
• Loose exhaust components: Deteriorated or incorrectly tightened hardware may allow movement around the heat exchanger or exhaust connections.
• Exhaust gas leaks: Damaged or loose fasteners can reduce gasket clamping pressure, allowing exhaust gases to escape from the joints.
• Increased exhaust noise: Leaking exhaust connections may produce ticking, blowing or hissing sounds, particularly during acceleration or when the engine is cold.
• Rattling or vibration: Loose mounting components may allow the exhaust system to vibrate excessively, producing unwanted metallic noises.
• Broken or missing mounting hardware: Heat exposure, corrosion or mechanical stress may cause mounting studs or bolts to fracture.
• Exhaust fumes or unusual odours: Leaking exhaust joints may allow exhaust gases to escape into the surrounding engine area.
• Difficulty removing exhaust components: Severely corroded or seized mounting hardware may complicate routine servicing and heat exchanger replacement.

Old or corroded mounting components may no longer provide the correct clamping force required to keep exhaust connections secure. This can result in exhaust gas leaks, excessive vibration, rattling and potential damage to surrounding components.

Severely corroded hardware may also break during removal, making future exhaust repairs more difficult and time-consuming.

Installing a replacement OE Match Exhaust Mounting Kit helps to:

• Restore secure exhaust installation: Ensure compatible heat exchangers and exhaust components are correctly fastened.
• Help prevent exhaust leaks: Maintain appropriate gasket clamping pressure for reliable sealing.
• Reduce unwanted vibration: Minimise rattling and movement caused by loose or weakened mounting hardware.
• Improve exhaust system reliability: Replace aged, corroded or damaged fasteners before they cause further problems.
• Support safe vehicle operation: Help reduce the risk of exhaust gases escaping through poorly secured connections.
• Simplify exhaust maintenance: Provide replacement mounting hardware when removing and refitting heat exchangers.
• Protect surrounding components: Reduce the risk of excessive movement or stress on adjacent exhaust components.
• Support classic Porsche restoration: Restore the intended exhaust mounting arrangement during engine rebuilding or vehicle refurbishment.
• Offer a cost-effective repair: Provide an OE Match alternative to the Genuine Porsche mounting kit.

Replacing exhaust mounting hardware during heat exchanger replacement or major exhaust servicing is recommended, particularly when existing fasteners show signs of corrosion, damage or deterioration.