Cometic Gasket
Cometic MLS Head Gasket 101mm .040in — Fits 2004-2010 Subaru EJ255/EJ257
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Cometic MLS Head Gasket 101mm .040in — Fits 2004-2010 Subaru EJ255/EJ257
Cometic Gasket

Cometic MLS Head Gasket 101mm .040in — Fits 2004-2010 Subaru EJ255/EJ257

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SKU: CGSC4574-040

About Cometic Gasket Cometic Gasket is the world leader in ...Read more

Price:
$51.84 $57.59
510 ENTRIES10X
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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

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Product Details

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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.

Watch in action

Precision Sealing for High-Performance Subaru Engines

The Cometic 101mm .040" MLS Head Gasket is the professional choice for Subaru EJ255 and EJ257 engine builds. Engineered to handle the rigors of forced induction, this multi-layer steel gasket provides the durability required for high-horsepower applications. By utilizing advanced metallurgy and a specialized Viton coating, it creates a superior seal that resists the extreme heat and pressure fluctuations common in turbocharged Subaru engines.

Why Choose Cometic MLS Gaskets?

  • Robust Construction: Multiple layers of stainless steel provide maximum strength and structural integrity.
  • Viton Rubber Coating: Provides a superior seal on both sides, ensuring heat resistance up to 250°C.
  • Ideal Fitment: Specifically sized at 101mm to accommodate common overbore requirements for EJ25 platforms.
  • Thermal Management: Designed to handle the shearing forces between aluminum cylinder heads and engine blocks.

This .040" thickness gasket is perfect for builders looking to fine-tune their compression ratios while maintaining a leak-free environment. Unlike traditional composite gaskets, the Cometic MLS design offers excellent rebound and corrosion resistance, ensuring your engine remains sealed under the most demanding conditions. Upgrade your Subaru's reliability today with premium components from GGCRACING.

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.

Watch in action

Precision Sealing for High-Performance Subaru Engines

The Cometic 101mm .040" MLS Head Gasket is the professional choice for Subaru EJ255 and EJ257 engine builds. Engineered to handle the rigors of forced induction, this multi-layer steel gasket provides the durability required for high-horsepower applications. By utilizing advanced metallurgy and a specialized Viton coating, it creates a superior seal that resists the extreme heat and pressure fluctuations common in turbocharged Subaru engines.

Why Choose Cometic MLS Gaskets?

  • Robust Construction: Multiple layers of stainless steel provide maximum strength and structural integrity.
  • Viton Rubber Coating: Provides a superior seal on both sides, ensuring heat resistance up to 250°C.
  • Ideal Fitment: Specifically sized at 101mm to accommodate common overbore requirements for EJ25 platforms.
  • Thermal Management: Designed to handle the shearing forces between aluminum cylinder heads and engine blocks.

This .040" thickness gasket is perfect for builders looking to fine-tune their compression ratios while maintaining a leak-free environment. Unlike traditional composite gaskets, the Cometic MLS design offers excellent rebound and corrosion resistance, ensuring your engine remains sealed under the most demanding conditions. Upgrade your Subaru's reliability today with premium components from GGCRACING.

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