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Exhaust Gaskets
By OE Match
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
SET OF 2
This exhaust gasket is built to factory dimensions, it seals perfectly between the exhaust manifold and catalytic converter, preventing leaks and preserving smooth exhaust flow and performance.
Fits:
Porsche 997 C2 / C4 all 2005 - 2008
Porsche Cayman 987C MKI & MKII 2005 - 2012
Porsche Boxster 987 MKI & MKII 2005 - 2012
Porsche 982 Boxster GTS 4.0 2017>>
Porsche 982C Cayman GTS 4.0 2017>>
Porsche 982 Spyder 4.0L 2019>>
Porsche 982C GT4 4.0 2019>>
Diagram ref no 7
Located between the manifold / heat exchanger and the catalytic converter / exhaust pipe connection on Porsche models using the M96 / M97 / M98 engines.
Original gaskets may deteriorate over time due to heat, corrosion, and mechanical stress, allowing exhaust gases to escape. Leaks at this junction can cause noise, performance loss, and potential exposure of heat to nearby parts. An OE-Match version restores correct sealing, prevents leaks, and helps preserve the intended exhaust behaviour.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711111300
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Sold each. Required 2 per car.
This exhaust gasket is built to factory dimensions, it seals perfectly between the exhaust manifold and catalytic converter, preventing leaks and preserving smooth exhaust flow and performance.
Fits:
Porsche 997 C2 / C4 all 2005 - 2008
Porsche Cayman 987C MKI & MKII 2005 - 2012
Porsche Boxster 987 MKI & MKII 2005 - 2012
Porsche 982 Boxster GTS 4.0 2017>>
Porsche 982C Cayman GTS 4.0 2017>>
Porsche 982 Spyder 4.0 2019>>
Porsche 982C GT4 4.0 2019>>
Diagram ref no 7
Located between the manifold / heat exchanger and the catalytic converter / exhaust pipe connection on Porsche models using the M96 / M97 / M98 engines.
Original gaskets may deteriorate over time due to heat, corrosion, and mechanical stress, allowing exhaust gases to escape. Leaks at this junction can cause noise, performance loss, and potential exposure of heat to nearby parts. An OE-Match version restores correct sealing, prevents leaks, and helps preserve the intended exhaust behaviour.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711111300
The product you are viewing cross references to these numbers
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
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
The product you are viewing cross references to these numbers
OEMatch Exhaust Gaskets — Flow, Response, Refinement
Exhaust gaskets form essential seals within Porsche exhaust systems. OEMatch supplies a selection of exhaust gaskets for Porsche models to restore sealing between manifolds, headers, pipes and catalytic converters. Choosing the correct profile and material helps prevent leaks, reduce noise and protect nearby components from heat damage.
Available Types
- Manifold-to-downpipe flange gaskets
- Header and collector gaskets
- Catalytic converter and connector gaskets
- Ring and multi-layer steel (MLS) exhaust seals
Understanding OEMatch Exhaust Gaskets
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original exhaust gaskets.
OE (Original Equipment) refers to parts matching original specifications for the exhaust gaskets and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM exhaust gaskets engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
Exhaust gaskets create airtight seals at joints and flanges to control gas flow and maintain correct back pressure. Materials range from composite fibres and graphite to metal-reinforced and multi-layer steel constructions chosen for temperature resistance and corrosion durability. Correct sealing supports sensor operation, emissions control and engine efficiency while limiting exhaust noise and vibration.
Benefits Include
- Tight sealing to prevent exhaust leaks and maintain back pressure
- Reduced exhaust noise and vibration
- Protection of nearby components from heat and corrosive gases
Why Exhaust Gaskets Wear and Fail
- Repeated thermal expansion and contraction leading to cracking or deformation
- Corrosion from moisture and road salt attacking metal layers
- Vibration and joint movement causing material fatigue or loss of compression
- Incorrect installation or uneven flange contact causing leaks
The Importance of Replacing with OEMatch Exhaust Gaskets
Replacing worn or damaged gaskets restores proper exhaust sealing for Porsche models and helps retain engine performance, emissions control and component life. Many owners search for genuine or OEM exhaust gaskets; these are direct-fit alternatives designed to match the original form, fit and function. Selecting the correct gasket type for the exhaust joint reduces the risk of recurring leaks and downstream damage to manifolds, sensors and catalytic converters.
Advantages
- A choice of materials and profiles matched to common Porsche flange types
- Options suited to restoration, routine maintenance or higher-temperature applications
- Clear identification by application to help confirm fit for model and engine
