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Overview
The Cometic MLS (Multi-Layer Steel) Head Gasket is engineered for Subaru EJ255 and EJ257 engines, providing superior sealing for high-performance and daily-driven applications. Manufactured using multiple stainless-steel layers with a precision coating, these gaskets are designed to withstand the extreme cylinder pressures and temperatures of turbocharged Subaru engines. Perfect for builds requiring strength, reliability, and long service life.
Key Features
- High-strength MLS construction – three-layer stainless steel
- 101mm bore size, 1.0mm (0.040") compressed thickness
- Resists high cylinder pressures and temperatures
- Designed for performance and OEM-style rebuilds
- Provides consistent sealing under high boost and load
Technical Specifications
- Material: Multi-Layer Steel (MLS)
- Bore Size: 101mm
- Compressed Thickness: 1.0mm
- Layers: 3
- Bore Shape: Round
Vehicle Fitment (Australia)
- Subaru WRX STI EJ257 (2008–2021)
- Subaru WRX EJ255 (2008–2014)
- Subaru Forester EJ255 (2008–2013)
- Subaru Liberty GT EJ255 (2008–2012)
- Subaru Outback XT EJ255 (2008–2009)
Part Number: C4574-040
No instructions available for this product.

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