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- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
This OE Match exhaust seal ring is a replacement gasket ring used between the heat exchanger and cylinder head on Porsche 964 Turbo models. It is designed to match the original sealing function and provide a secure, gas-tight connection in the exhaust system
Sold individually, 3 required per side / 6 required per vehicle
Fits:
Porsche 964 Turbo 1991 - 1993
Diagram ref no 2
The seal ring creates a tight seal at the heat exchanger connection, helping prevent exhaust gases from escaping before they enter the rest of the exhaust system. A correct seal supports proper exhaust flow, reduces unwanted noise, and helps maintain engine performance.
Functions
• Seals the connection between the heat exchanger and cylinder head
• Helps prevent exhaust gas leaks
• Supports correct exhaust flow and back pressure
• Reduces ticking, blowing, or leak-related exhaust noise
• Helps maintain turbocharged engine efficiency
• Provides an OE Match replacement for the original exhaust seal ring
• Suitable for heat exchanger removal, replacement, or exhaust system service
Exhaust seal rings are exposed to extreme heat, pressure, vibration, and corrosion. Over time, the original ring can flatten, crack, burn through, or lose its sealing ability. A failed seal ring can cause exhaust leaks, ticking noises, fumes, poor sealing at the heat exchanger, and reduced exhaust system efficiency. Replacing the seal ring helps restore a tight, reliable exhaust connection.
When to replace
• The heat exchangers have been removed or replaced
• There is an exhaust leak at the heat exchanger connection
• A ticking or blowing noise is heard from the exhaust/head area
• The old seal ring is crushed, cracked, burnt, corroded, or missing
• Exhaust fumes or soot marks are visible around the joint
• Engine or turbo exhaust work is being carried out
• As preventative replacement during exhaust system reassembly
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93011122300
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
DesignTek Maximum power and aggressive sports car sound exactly like the factory 3.8L Supercup 964's. primarily intended for the track or race. This system has some resonance and is very sporty and aggressive. Please note this system bypass the cats and the heating system of the car.
This kit includes:
Headers
Rear Box
This kit does not include the CATS. Header to engine gaskets are not included. You can add them to the basket when you buy this exhaust.
Manifold to Head internal diameter is 39MM
Manifold to Rear silencer internal diameter is 56MM
Fits:
Porsche 964 1990-94
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606006401
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Direct high-performance replacement for the stock headers; includes all required heat exchange components, oil lines, gaskets, and hardware.
FEATURES:
• Fits: all Porsche 964 Turbo 965 vehicles (1990-1994)
• 14-16 guage T304SS, C.N.C. mandrel bent with high velocity IndyCar/Formula 1 merge collectors for optimum flow to the headers for quicker turbo spool.
• These headers will work with the stock muffler or any aftermarket muffler designed to fit like OEM.
• The system will include a drip accumulator with double swivels and Aeroquip lines with adapters and a graphite steel layered gasket for the drip accumulator. 7/8" custom braided oil lines with correct 30mm radius Porsche style ball end will be included to replace the stock oil lines.
• Hardware necessary for installation includes copper nuts for the header/manifold mounting with copper gaskets for no leaks and purges.
• The world's 100% finest, strongest, and easiest headers to install.
Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR964TSHDRWH
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 Crush Sealing Ring for Heat Exchangers
Sold each - 6 required per car
Restore a gas-tight seal to your Porsche exhaust system with
this OE Match Exhaust Crush Sealing Ring,
designed for the Porsche 964 and Porsche 993 heat exchanger assembly.
Manufactured to original equipment specifications, this premium exhaust sealing
ring compresses during installation to create a secure seal between exhaust
components, preventing exhaust gas leaks while maintaining optimum engine
performance.
Fits:
- 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
Diagram ref no 3
Whether you're replacing heat exchangers, installing a new silencer or carrying out engine or exhaust maintenance, fitting new crush sealing rings is essential to ensure a reliable and leak-free exhaust system.
What Does the Exhaust Crush Sealing Ring Do?
The exhaust crush sealing ring is installed between mating exhaust components where it forms a high-temperature gas seal once compressed during assembly.
Its primary functions include:
- Creating a gas-tight seal between exhaust components.
- Preventing exhaust gas leaks.
- Maintaining correct exhaust back pressure.
- Supporting optimum engine performance.
- Reducing unwanted exhaust noise.
- Helping protect surrounding components from escaping hot exhaust gases.
Because the sealing ring is designed to deform during installation, it provides a highly effective seal capable of withstanding extreme exhaust temperatures.
Why Do Exhaust Crush Sealing Rings Fail?
Exhaust sealing rings operate under constant exposure to
high temperatures and pressure. Common causes of failure include:
- Compression during initial installation.
- Reuse after previous removal.
- Continuous heat cycling.
- Corrosion from moisture and condensation.
- Exhaust system movement.
- Age-related deterioration.
Once compressed, the sealing ring cannot return to its original shape, making it unsuitable for reuse.
When Should the Exhaust Crush Sealing Ring Be Replaced?
Replacement is recommended whenever:
- Heat exchangers are removed.
- Exhaust silencers are replaced.
- Exhaust manifolds are dismantled.
- Exhaust leaks are detected.
- Engine rebuilds are carried out.
- Any exhaust joint using the sealing ring is disturbed.
Most Porsche specialists recommend fitting new crush sealing rings every time the exhaust system is dismantled to guarantee a proper seal and avoid future exhaust leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99311119500
The product you are viewing cross references to these numbers