Exhaust Gaskets
3 required per side
This exhaust seal ring is designed for Porsche 964 and 993 models, replicating the original gasket’s fit, function, and durability. It provides a gas-tight seal between the exhaust manifold or heat exchanger and the cylinder head, restoring quiet, leak-free, and efficient exhaust performance.
Fits:
Porsche 964 C2 / C4 / Carrera RS 1989-94
Porsche 993 Carrera / Turbo 1995-98
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311119500
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 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) TURBO S 1994-97
Exhaust heat exchanger fitting kit. Includes studs and nuts made out of titanium.
These titanium components are resistant to rust and corrosion, which can be a common issue with traditional steel studs and nuts. This corrosion resistance ensures that the studs and nuts maintain their integrity, allowing for easy removal and installation when necessary. They are the perfect upgrade for Porsche enthusiasts who demand the ease of access to vehicle's exhaust system.
Fits:
Porsche 993
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Price is each

Heat exchangers to pre-silencer.
Heat exchanger to cross over pipe.
Fits:
Porsche 911 1974-89
Porsche 930 1977-89
Porsche 965 1991-94
Porsche 993 1994-98 Bischoff
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011119206
The product you are viewing cross references to these numbers
- 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


Heat exchangers to pre-silencer.
Heat exchanger to cross over pipe.
Fits:
Porsche 930 1977-89
Porsche 965 1991-94
Porsche 993 1994-98 Bischoff
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011119206
The product you are viewing cross references to these numbers
- 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


Fits:
Porsche 993 1994-98 Gillet Heat exchanger to pre-silencer or heat exchanger to cross over pipe
Porsche 928 1978-92 Manifold to down pipes or down pipes to rear silencer.
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811112702
The product you are viewing cross references to these numbers
- 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
This replacement, direct-fit exhaust gasket is manufactured to OEM dimensions standards for a perfect, leak-free seal and long-lasting performance.
Fits:
Porsche 993 1994 - 1998
* Gillet Heat exchanger to pre-silencer (diagram ref no 6) or heat exchanger to cross over pipe (diagram ref no 10)
Porsche 928 1978 - 1992
* Manifold to down pipes (diagram ref no 11) or down pipes to rear silencer (diagram ref no 11)
This gasket provides a gas-tight seal between exhaust components—typically between the exhaust manifold, catalytic converter, or connecting pipes—to prevent exhaust leaks, maintain backpressure, and ensure proper sensor readings. Its heat-resistant composite construction withstands extreme temperatures, vibration, and exhaust gas exposure.
• Used in the exhaust system joints of various Porsche models,
• Commonly fitted between exhaust flanges or at the manifold-to-pipe or pipe-to-catalytic converter junctions
• Direct-fit installation with OEM-style flange geometry—no modifications required
Over time, original gaskets can compress, burn through, or crack from heat cycling and vibration, causing exhaust leaks, noise, or loss of performance. Replacing it with a high-quality OE Match gasket restores proper sealing, maintains exhaust efficiency, and prevents damaging heat or gas leaks near sensitive components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92811112702
The product you are viewing cross references to these numbers
- 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 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91

3 per side. Price is for each.

Fits:
Porsche 964 C2 / C4 / Carrera RS 1989-94
Porsche 993 Carrera / Turbo 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311119500
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 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) TURBO S 1994-97
3 per side. Price is for each.
Exhaust seal ring is designed to replicate the original gasket’s fit and durability, it ensures a gas-tight seal between the exhaust manifold or heat exchanger and the cylinder head—restoring quiet, efficient performance.
Fits:
Porsche 964 C2 / C4 / Carrera RS 1989-94
Porsche 993 Carrera / Turbo 1995-98
Diagram ref no 3
• Seals the connection between the exhaust header / heat exchanger and the engine, preventing exhaust gas leaks
• Helps maintain correct back-pressure, avoids losing efficiency, and ensures proper exhaust flow
Over time, the original seal ring can become brittle, corroded, or compressed, causing exhaust leaks, noise, and potential loss of performance. Installing an OE-Match ring restores a tight, gas-proof seal, helping preserve exhaust integrity and efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311119500
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 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) TURBO S 1994-97
Price is for each

Fits:
Porsche 993 turbo - 1994 to 1997
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96511120500
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
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.