Cometic C4587-040 MLS Head Gasket for 2004-20 Subaru WRX/STi/Forester XT/Legacy

Vehicle Fitment

• 2004-2020 Subaru WRX (EJ255, 2.5L Turbo, AWD)
• 2004-2020 Subaru STi (EJ257, 2.5L Turbo, AWD)
• 2008-2013 Subaru Forester XT (EJ255, 2.5L Turbo, AWD)
• 2005-2009 Subaru Legacy GT (EJ255, 2.5L Turbo, AWD)

Fitment Notes

• Designed for turbocharged EJ255/EJ257 engines only.
• Not compatible with naturally aspirated EJ253 engines.
• Verify engine code and trim level before purchase.
• Compatible with both OEM and aftermarket cylinder heads.

Features

• Multi-Layer Xtreme (MLX) stainless steel construction for superior sealing.
• 101mm bore size to match OEM specifications.
• Compressed thickness of 0.040 inches for optimal compression ratio.
• 4-layer design for enhanced durability and heat resistance.
• Viton-coated outer layers for improved longevity and sealing.
• Ideal for both street and performance applications.
• No re-torque required after installation.
• Made in the USA from high-quality materials.

Specifications

• Material: Multi-Layer Xtreme (MLX)
• Compressed Thickness: 0.040 inches
• Bore Size: 101mm
• Bore Shape: Round
• Number of Layers: 4
• Drivetrain Compatibility: All-Wheel Drive (AWD)
• Engine Compatibility: EJ255/EJ257 2.5L Turbo
• Position: Cylinder Head

Included Components

• 2x Cometic C4587-040 MLS Head Gaskets

Product Description

The Cometic C4587-040 MLS Head Gasket is engineered for Subaru's turbocharged EJ255 and EJ257 2.5L engines, covering WRX, STi, Forester XT, and Legacy GT models from 2004-2020. With a 101mm bore size and 0.040-inch compressed thickness, this gasket ensures precise sealing and OEM-level performance.

Its 4-layer construction delivers durability and heat resistance, while the Viton-coated outer layers enhance longevity and prevent leaks. Designed for both OEM and aftermarket cylinder heads, it requires no re-torque after installation, making it perfect for street, performance, and competition applications.

Ensure correct engine codes and AWD drivetrain compatibility before installation. This gasket is not compatible with naturally aspirated EJ253 engines. Ideal for engine rebuilds and high-performance upgrades, the Cometic C4587-040 provides reliable sealing and long-term performance for Subaru enthusiasts.