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Porsche > 991 (911) MK1 2012-2016 > 991.1 GT3 RS 4.0L (500 Bhp) 2015-16 > Exhausts >

Exhaust Gaskets

Exhaust Gaskets

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DISPLAYING 1 to 4 (of 4 products)
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) - SR069
1
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1)
SR069
Product Information
Product Information
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) 2009-Onwards

stomski

Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.

Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Exhaust manifold to head gasket for Porsche GT4 RS / 991 GT3 / RS / 992 GT3 / RS - 9A111110790, 9GT251261
2
Exhaust manifold to head gasket for Porsche GT4 RS / 991 GT3 / RS / 992 GT3 / RS
Special Order item
9GT251261
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Product Information
Exhaust manifold to head gasket. Each

porsche

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

Click 'Zoom in' for large parts diagram.
Diagram ref no 3

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

9GT251261
9A111110790
9GT251261

The product you are viewing cross references to these numbers
Exhaust manifold to head gasket. Porsche GT4 RS / 991 GT3 / RS / 992 GT3 / RS - 9A111110790, 9GT251261 - 9GT 251 261
2
Exhaust manifold to head gasket. Porsche GT4 RS / 991 GT3 / RS / 992 GT3 / RS
9GT251261/1
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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
9A111110790
9GT251261

The product you are viewing cross references to these numbers
Exhaust manifold to silencer sealing ring for Porsche Carrera GT / 997.2 GT3 / 991.1 GT3 / 991.2 GT3 - 98011156100
3
Exhaust manifold to silencer sealing ring for Porsche Carrera GT / 997.2 GT3 / 991.1 GT3 / 991.2 GT3
Special Order item
98011156100
Product Information
Product Information
Exhaust manifold to head gasket. Each

porsche

Fits:
Porsche 997.2 GT3
Porsche 991.1 GT3 / RS
Porsche 991.2 GT3 / RS / R / Speedster

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

98011156100
98011156100

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
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About Exhaust Gaskets

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.

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