Exhaust manifold to head gasket. Porsche GT4 RS / 991 GT3 / RS / 992 GT3 / RS  ❭  9GT251261

Exhaust manifold to head gasket
This OE Match exhaust manifold to cylinder head gasket is a replacement exhaust sealing gasket for Porsche GT4 RS, 991 GT3 / GT3 RS, and 992 GT3 / GT3 RS models. It is designed to match the original-style fitment and function, helping provide a secure seal between the exhaust manifold and cylinder head.
Sold individually, 2 required per vehicle

Fits:
Porsche 991.1 GT3 / RS
Porsche 991.2 GT3 / RS / R / Speedster
Porsche 992 GT3 / RS
Porsche 718 GT4  RS Cayman

Diagram ref no 3

The exhaust manifold gasket seals the joint between the cylinder head exhaust ports and the exhaust manifold. It helps prevent exhaust gas leaks, maintains correct exhaust flow, and supports proper engine performance, emissions control, and exhaust system operation.

Functions
• Seals the exhaust manifold to cylinder head joint
• Helps prevent exhaust gas leaks
• Supports correct exhaust flow from the engine
• Helps maintain engine performance and response
• Reduces the risk of ticking noises caused by manifold leaks
• Replaces compressed, leaking, damaged, or worn original gaskets
• OE Match replacement for exhaust system service and repair.

Why Replace This Part?
Exhaust manifold gaskets are exposed to extreme heat, pressure, vibration, and repeated heat cycling. Over time, the gasket can compress, burn through, crack, or lose sealing ability. A failed gasket may cause exhaust ticking, fumes, loss of performance, incorrect emissions readings, or heat damage around the manifold area. Replacing the gasket helps restore a reliable exhaust seal and correct system operation.

When to Replace This Part
•  The exhaust manifold has been removed
•  Exhaust gas leakage is present at the cylinder head joint
•  A ticking or blowing noise is heard from the manifold area
•  The gasket is crushed, burnt, cracked, or damaged
•  Exhaust fumes or soot marks are visible around the manifold flange
•  The exhaust system or headers are being serviced or replaced
•  The engine is undergoing repair, rebuild, or preventative maintenance.

Where it fits on the car
This gasket fits between the exhaust manifold and the cylinder head. It is used at the exhaust port sealing face and should be installed according to the factory exhaust manifold layout and tightening procedure.

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Related, superseded, cross reference or alternative numbers for comparison.

9GT251261

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