Exhaust manifold gasket. Porsche 996 / 986 Boxster / 987 Boxster / 987C Cayman / 997 › 99611110755

Exhaust Seal Ring 
Sold each

The Porsche Exhaust Seal Ring is designed to provide a secure, gas-tight connection between exhaust system components, particularly the turbocharger outlet and catalytic converter.

Engineered to withstand high exhaust temperatures and pressure fluctuations, this replacement sealing ring helps prevent exhaust gas leaks, reduce unwanted noise and maintain efficient exhaust system operation.

Ideal for Porsche exhaust repairs, turbocharger replacement and catalytic converter servicing.

What Does the Exhaust Seal Ring Do?

The exhaust seal ring forms a tight seal between adjoining exhaust components, preventing hot exhaust gases from escaping through the connection.

It also helps maintain correct exhaust gas flow through the catalytic converter and reduces noise caused by leaking exhaust joints.

Why Do Exhaust Seal Rings Fail?

Exhaust sealing rings operate under extreme temperatures and repeated heating and cooling cycles.

Common causes of failure include:

• Thermal expansion and contraction.
• Age-related deterioration and compression.
• Exhaust system vibration.
• Corrosion or damaged mating surfaces.
• Incorrect installation or excessive movement.

A damaged seal can allow exhaust gases to escape, creating noise and potentially affecting exhaust system operation.

When Should It Be Replaced?

Replacement is recommended whenever the relevant exhaust joint is dismantled or signs of leakage are detected.

Common symptoms include:

• Blowing or hissing noises from the exhaust.
• Exhaust fumes escaping around the joint.
• Visible soot deposits near the connection.
• Increased exhaust noise.
• Damaged or distorted sealing surfaces.

Replacing the sealing ring during turbocharger or catalytic converter repairs helps ensure a secure, leak-free connection.

Key Features

• Designed for high-temperature exhaust applications.
• Provides a gas-tight seal between exhaust components.
• Helps prevent exhaust leaks and unwanted noise.
• Suitable for selected turbocharger-to-catalyst connections.
• Helps maintain correct exhaust system operation.
• Ideal for exhaust servicing and repairs.
• Sold individually.

Installation Notes

Clean and inspect the mating surfaces before fitting the new sealing ring.

Ensure the ring is correctly positioned and tighten the associated exhaust clamps or fasteners to Porsche specifications.

Always use a new seal where required when separating the turbocharger and catalytic converter connection.

Product Category Description – Porsche Exhaust Gaskets & Sealing Rings

Porsche exhaust sealing rings provide reliable gas-tight connections between turbochargers, catalytic converters and exhaust system components.