Cometic BMW S55B30T0 85mm Bore .044in MLX Head Gasket — Fits 2015-2020 BMW M3/M4/M2

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SKU: CGSC14133-044
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Advanced MLX Sealing for BMW S55 Engines

The Cometic MLX (Multi-Layer Steel with Stopper) Head Gasket is the ultimate sealing solution for the high-output BMW S55B30T0 engine. Designed specifically for the 85mm bore, this .044in gasket provides the structural integrity required for high-boost applications, ensuring your M3, M4, or M2 Competition remains reliable under extreme conditions.

Engineered for Performance

  • MLX Technology: Incorporates a folded stopper layer for increased clamping force around the combustion chamber.
  • Viton Coating: High-temperature Viton rubber coating ensures a leak-free seal against the head and block surfaces.
  • Precision Bore: Optimized for 85mm bore configurations to prevent gasket intrusion into the cylinder.
  • Resilience: Built to handle the high cylinder pressures and thermal cycling typical of modified BMW engines.

Cometic gaskets are the industry standard for high-performance builds, providing the rebound and corrosion resistance necessary for modern aluminum heads and blocks. By utilizing multiple layers of stainless steel, this gasket effectively manages the shearing forces created by high-horsepower output. Whether you are tracking your M4 or tuning your M2 for the street, this gasket is a critical upgrade for engine longevity. Find the best performance parts for your BMW at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 BMW M2 Competition
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base
2016 BMW M4 GTS
2019-2020 BMW M4 CS

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Advanced MLX Sealing for BMW S55 Engines

The Cometic MLX (Multi-Layer Steel with Stopper) Head Gasket is the ultimate sealing solution for the high-output BMW S55B30T0 engine. Designed specifically for the 85mm bore, this .044in gasket provides the structural integrity required for high-boost applications, ensuring your M3, M4, or M2 Competition remains reliable under extreme conditions.

Engineered for Performance

  • MLX Technology: Incorporates a folded stopper layer for increased clamping force around the combustion chamber.
  • Viton Coating: High-temperature Viton rubber coating ensures a leak-free seal against the head and block surfaces.
  • Precision Bore: Optimized for 85mm bore configurations to prevent gasket intrusion into the cylinder.
  • Resilience: Built to handle the high cylinder pressures and thermal cycling typical of modified BMW engines.

Cometic gaskets are the industry standard for high-performance builds, providing the rebound and corrosion resistance necessary for modern aluminum heads and blocks. By utilizing multiple layers of stainless steel, this gasket effectively manages the shearing forces created by high-horsepower output. Whether you are tracking your M4 or tuning your M2 for the street, this gasket is a critical upgrade for engine longevity. Find the best performance parts for your BMW at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 BMW M2 Competition
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base
2016 BMW M4 GTS
2019-2020 BMW M4 CS

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Advanced MLX Sealing for BMW S55 Engines

The Cometic MLX (Multi-Layer Steel with Stopper) Head Gasket is the ultimate sealing solution for the high-output BMW S55B30T0 engine. Designed specifically for the 85mm bore, this .044in gasket provides the structural integrity required for high-boost applications, ensuring your M3, M4, or M2 Competition remains reliable under extreme conditions.

Engineered for Performance

  • MLX Technology: Incorporates a folded stopper layer for increased clamping force around the combustion chamber.
  • Viton Coating: High-temperature Viton rubber coating ensures a leak-free seal against the head and block surfaces.
  • Precision Bore: Optimized for 85mm bore configurations to prevent gasket intrusion into the cylinder.
  • Resilience: Built to handle the high cylinder pressures and thermal cycling typical of modified BMW engines.

Cometic gaskets are the industry standard for high-performance builds, providing the rebound and corrosion resistance necessary for modern aluminum heads and blocks. By utilizing multiple layers of stainless steel, this gasket effectively manages the shearing forces created by high-horsepower output. Whether you are tracking your M4 or tuning your M2 for the street, this gasket is a critical upgrade for engine longevity. Find the best performance parts for your BMW at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2019-2020 BMW M2 Competition
2015-2018 BMW M3 Base
2015-2020 BMW M4 Base
2016 BMW M4 GTS
2019-2020 BMW M4 CS

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