Brackets / Clamps / Straps

Exhaust cross over pipe bolt.
 2 pcs required, price is for each.

Fits:
Porsche 911 1975 - 1989
Porsche 930 Turbo

Diagram ref no 14

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90007423302

The product you are viewing cross references to these numbers

Exhaust cross over pipe bolt.
2 pcs required, price is for each.

Fits:
Porsche 911 1975 - 1989
Porsche 930 Turbo

Diagram ref no 14

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90007423302

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Exhaust Cross Over Pipe nut. (2pcs required)



Fits:
Porsche 911 1975-89
Porsche 930 Turbo

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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90091009602

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Cross Over Pipe Exhaust Sealing Ring 

Restore proper exhaust sealing and eliminate unwanted exhaust leaks with Cross Over Pipe Exhaust Sealing Ring, designed for Porsche 911 models produced between 1975 and 1989. This sealing ring is used within the cross over pipe section of the exhaust system, creating a gas-tight seal between connected exhaust components.

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)

Diagram ref no 13 

The cross over pipe is a critical part of the air-cooled Porsche exhaust system, helping balance exhaust gas flow and directing gases efficiently through the exhaust assembly. The sealing ring ensures that exhaust gases remain contained within the system, preventing leaks that can reduce performance, increase noise and affect overall driving enjoyment.

Over time, exhaust sealing rings are subjected to extreme temperatures, vibration, pressure fluctuations and corrosion. As the seal ages, it can become compressed, brittle or damaged, leading to exhaust leaks and reduced system efficiency.

Replacing worn sealing rings whenever exhaust components are removed is essential for maintaining proper exhaust system performance and reliability.

What Does a Cross Over Pipe Exhaust Sealing Ring Do?

The exhaust sealing ring sits between mating exhaust components and creates a heat-resistant seal that prevents exhaust gases from escaping.

A properly functioning sealing ring helps:

• Maintain a leak-free exhaust system
• Ensure correct exhaust gas flow
• Reduce exhaust noise
• Support engine efficiency
• Prevent exhaust fumes escaping at joints
• Maintain correct exhaust back pressure
• Protect surrounding components from hot gas leakage

Without an effective seal, exhaust gases can escape before reaching the silencer system.

Symptoms of Wear or Failure

Exhaust sealing rings naturally deteriorate due to constant exposure to heat and vibration.

Common signs of a failing sealing ring include:

• Exhaust blowing noises
• Ticking sounds from the exhaust system
• Visible soot deposits around joints
• Increased exhaust noise
• Exhaust fumes around the vehicle
• Reduced engine efficiency
• Poor sealing after exhaust disassembly
• Signs of compression or deterioration during inspection

Even a small leak can become progressively worse if the sealing ring is not replaced.

Why Replacement Matters

Replacing a worn exhaust sealing ring helps maintain exhaust system integrity and prevents secondary damage to other exhaust components.

Benefits include:

• Restores leak-free exhaust operation
• Improves exhaust system efficiency
• Reduces unwanted exhaust noise
• Helps maintain correct exhaust flow
• Protects surrounding exhaust components
• Improves repair reliability
• Supports long-term durability
• Enhances restoration quality

For classic air-cooled Porsche 911 models, maintaining correct exhaust sealing is essential for performance, reliability and driving enjoyment.

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

91111118903

The product you are viewing cross references to these numbers

Cross Over Pipe Exhaust Sealing Ring 

Restore proper exhaust sealing and eliminate unwanted exhaust leaks with Cross Over Pipe Exhaust Sealing Ring, designed for Porsche 911 models produced between 1975 and 1989. This sealing ring is used within the cross over pipe section of the exhaust system, creating a gas-tight seal between connected exhaust components.

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)

Diagram ref no 13 

The cross over pipe is a critical part of the air-cooled Porsche exhaust system, helping balance exhaust gas flow and directing gases efficiently through the exhaust assembly. The sealing ring ensures that exhaust gases remain contained within the system, preventing leaks that can reduce performance, increase noise and affect overall driving enjoyment.

Over time, exhaust sealing rings are subjected to extreme temperatures, vibration, pressure fluctuations and corrosion. As the seal ages, it can become compressed, brittle or damaged, leading to exhaust leaks and reduced system efficiency.

Replacing worn sealing rings whenever exhaust components are removed is essential for maintaining proper exhaust system performance and reliability.

What Does a Cross Over Pipe Exhaust Sealing Ring Do?

The exhaust sealing ring sits between mating exhaust components and creates a heat-resistant seal that prevents exhaust gases from escaping.

A properly functioning sealing ring helps:

• Maintain a leak-free exhaust system
• Ensure correct exhaust gas flow
• Reduce exhaust noise
• Support engine efficiency
• Prevent exhaust fumes escaping at joints
• Maintain correct exhaust back pressure
• Protect surrounding components from hot gas leakage

Without an effective seal, exhaust gases can escape before reaching the silencer system.

Symptoms of Wear or Failure

Exhaust sealing rings naturally deteriorate due to constant exposure to heat and vibration.

Common signs of a failing sealing ring include:

• Exhaust blowing noises
• Ticking sounds from the exhaust system
• Visible soot deposits around joints
• Increased exhaust noise
• Exhaust fumes around the vehicle
• Reduced engine efficiency
• Poor sealing after exhaust disassembly
• Signs of compression or deterioration during inspection

Even a small leak can become progressively worse if the sealing ring is not replaced.

Why Replacement Matters

Replacing a worn exhaust sealing ring helps maintain exhaust system integrity and prevents secondary damage to other exhaust components.

Benefits include:

• Restores leak-free exhaust operation
• Improves exhaust system efficiency
• Reduces unwanted exhaust noise
• Helps maintain correct exhaust flow
• Protects surrounding exhaust components
• Improves repair reliability
• Supports long-term durability
• Enhances restoration quality

For classic air-cooled Porsche 911 models, maintaining correct exhaust sealing is essential for performance, reliability and driving enjoyment.

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

91111118903

The product you are viewing cross references to these numbers

Cross Over Pipe Exhaust Sealing Ring Washer 

Restore secure exhaust sealing with Cross Over Pipe Exhaust Sealing Ring Washer, designed for Porsche 911 models produced from 1975 to 1989. This sealing washer is used on the cross over pipe section of the exhaust system, helping create a tight, reliable seal between exhaust components.

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)

Diagram ref no 12 

The cross over pipe is exposed to high temperatures, vibration and exhaust gas pressure. The sealing ring washer helps maintain correct joint compression, reducing the risk of exhaust leaks, rattles and poor system alignment. When worn or damaged, the washer may no longer seal effectively, allowing exhaust gases to escape.

Replacing this washer during exhaust repairs, cross over pipe removal or restoration work helps ensure a professional, leak-free installation.

What Does an Exhaust Sealing Ring Washer Do?

An exhaust sealing ring washer supports the sealing joint between exhaust components. It helps maintain clamping pressure and assists the sealing ring or joint in preventing exhaust gases from escaping.

A correctly fitted sealing washer helps provide:

• Secure exhaust joint sealing
• Reduced risk of exhaust leaks
• Correct cross over pipe fitment
• Improved exhaust system stability
• Better gasket and sealing ring performance
• Reduced vibration and exhaust noise
• Reliable long-term exhaust operation

Symptoms of Wear or Failure

Common signs that an exhaust sealing washer may need replacement include:

• Exhaust blowing noises
• Soot marks around exhaust joints
• Increased exhaust noise
• Rattling from the cross over pipe area
• Poor sealing after exhaust refitting
• Corrosion or distortion of the washer
• Loose or uneven exhaust joint compression
• Exhaust fumes around the rear of the vehicle

Why Replacement Matters

A worn or damaged sealing washer can compromise the exhaust joint, leading to leaks, vibration and premature wear of surrounding exhaust parts.

Replacement helps:

• Restore correct exhaust sealing
• Prevent exhaust gas leaks
• Improve exhaust system reliability
• Reduce unwanted noise and vibration
• Maintain proper exhaust flow
• Protect connected exhaust components
• Improve repair and restoration quality
• Support long-term durability       

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

91111118802

The product you are viewing cross references to these numbers

Cross Over Pipe Exhaust Sealing Ring Washer 

Restore secure exhaust sealing with Cross Over Pipe Exhaust Sealing Ring Washer, designed for Porsche 911 models produced from 1975 to 1989. This sealing washer is used on the cross over pipe section of the exhaust system, helping create a tight, reliable seal between exhaust components.

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)

Diagram ref no 12 

The cross over pipe is exposed to high temperatures, vibration and exhaust gas pressure. The sealing ring washer helps maintain correct joint compression, reducing the risk of exhaust leaks, rattles and poor system alignment. When worn or damaged, the washer may no longer seal effectively, allowing exhaust gases to escape.

Replacing this washer during exhaust repairs, cross over pipe removal or restoration work helps ensure a professional, leak-free installation.

What Does an Exhaust Sealing Ring Washer Do?

An exhaust sealing ring washer supports the sealing joint between exhaust components. It helps maintain clamping pressure and assists the sealing ring or joint in preventing exhaust gases from escaping.

A correctly fitted sealing washer helps provide:

• Secure exhaust joint sealing
• Reduced risk of exhaust leaks
• Correct cross over pipe fitment
• Improved exhaust system stability
• Better gasket and sealing ring performance
• Reduced vibration and exhaust noise
• Reliable long-term exhaust operation

Symptoms of Wear or Failure

Common signs that an exhaust sealing washer may need replacement include:

• Exhaust blowing noises
• Soot marks around exhaust joints
• Increased exhaust noise
• Rattling from the cross over pipe area
• Poor sealing after exhaust refitting
• Corrosion or distortion of the washer
• Loose or uneven exhaust joint compression
• Exhaust fumes around the rear of the vehicle

Why Replacement Matters

A worn or damaged sealing washer can compromise the exhaust joint, leading to leaks, vibration and premature wear of surrounding exhaust parts.

Replacement helps:

• Restore correct exhaust sealing
• Prevent exhaust gas leaks
• Improve exhaust system reliability
• Reduce unwanted noise and vibration
• Maintain proper exhaust flow
• Protect connected exhaust components
• Improve repair and restoration quality
• Support long-term durability       

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91111118802

The product you are viewing cross references to these numbers

Exhaust muffler / silencer bracket. 



Fits:
Porsche 911 Carrera M559 / M573 1984-89
Porsche 911 Turbo 3.3L M559 / M573 1983-89

M559 - Cars with Air conditioner
M573 - Cars with Air conditioner wit heavy duty blower

Click 'Zoom in' for large parts diagram.
Diagram ref no 2A

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93011115406

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Exhaust muffler / silencer bracket. 
For cars WITHOUT Air Conditioning

Fits:
Porsche 911 turbo - 1978 to 1983

Diagram ref no 30

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93011115403

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Exhaust pipe supporting plate.

Fits:
Porsche 911 Turbo 1978-89
Porsche 964 Turbo 3.3L / 3.6L 1991-94

Diagram ref no 48

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93012311402

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Exhaust pipe supporting plate.

Fits:
Porsche 911 Turbo 1978-89
Porsche 964 Turbo 3.3L / 3.6L 1991-94

Diagram ref no 48

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93012311402

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Exhaust sealing ring gasket. Wastegate to muffler.


Fits:
Porsche 911 Turbo (1978 to 1989) with engine code M930.60/66/68
Porsche 924 Turbo (1976 to 1985)
Porsche 944/2 Turbo/Turbo S (1985 to 1991) with engine code M44.50/51/52

Click 'Zoom in' for large parts diagram.
Diagram ref no 46

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93012313404

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Exhaust sealing ring gasket. Wastegate to muffler.



Fits:
Porsche 911 Turbo (1978 to 1989) with engine code M930.60/66/68
Porsche 924 Turbo (1976 to 1985)
Porsche 944/2 Turbo/Turbo S (1985 to 1991) with engine code M44.50/51/52

Click 'Zoom in' for large parts diagram.
Diagram ref no 46

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93012313404

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Exhaust Muffler Strap Bolt. AM 10 x 50.



Fits:
Porsche 911 1965-89
Porsche 911 (930) Turbo 1975-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 21

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90006716102

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Exhaust Steel strap. One per car. Price is for each.



Fits:
Porsche 911 (930) Turbo 3.0L 1975-77
Porsche 911 (930) Turbo 3.3L 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 35

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93011115502

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Exhaust Steel Strap.

The OE MATCH Exhaust Steel Strap is a high-quality replacement mounting strap designed to securely support and retain the exhaust silencer or muffler assembly. Manufactured from durable steel and engineered to OE specifications, this strap helps maintain correct exhaust system positioning while supporting the weight of the silencer and reducing excessive movement caused by engine vibration and road conditions.

Fits:

• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930) 

 
Diagram Ref No 35

Constant exposure to heat, moisture, road salt, and vibration can cause original exhaust straps to corrode, weaken, or break over time. This OE MATCH replacement strap restores proper exhaust support, helping to prevent misalignment, rattles, and unnecessary stress on surrounding exhaust components.

What This Product Does:

• Secures and supports the exhaust silencer or muffler assembly
• Maintains correct exhaust system alignment and positioning
• Reduces excessive exhaust movement and vibration
• Supports the weight of the exhaust system
• Helps prevent strain on exhaust mounts, brackets, and pipe connections
• Provides reliable support in high-temperature operating environments

Symptoms Of Wear Or Failure:

• Rattling or knocking noises from underneath the vehicle
• Excessive exhaust movement during driving
• Sagging or misaligned exhaust components
• Visible corrosion, cracking, or strap breakage
• Exhaust system contact with the chassis or bodywork
• Increased stress on exhaust brackets and mounting points
• Vibration transmitted into the vehicle cabin
• Risk of exhaust component damage or detachment

Why Replacement Matters:

• Restores proper exhaust support and positioning
• Reduces vibration, rattles, and unwanted noise
• Protects exhaust pipes, silencers, and mountings from excessive movement
• Maintains correct exhaust alignment
• Helps prevent premature wear of related exhaust components
• Reduces the risk of costly exhaust repairs
• Improves vehicle refinement and driving comfort
• Ensures safe and reliable operation of the exhaust system

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93011115502

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