Cometic 03-11 Subaru EJ255 / 04-10 EJ257 Turbo 101mm Bore .040in MLS Head Gasket - C4587-040

The Cometic 03-11 Subaru EJ255 / 04-10 EJ257 Turbo 101mm Bore .040in MLS Head Gasket - C4587-040 is a precision-engineered head gasket with a 101mm bore and .040" compressed thickness.

The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.

• Material: Multi-Layer Steel (MLS)
• Bore Size: 101mm
• Thickness: .040" compressed
• Part Number: C4587-040

Verified fitment: Subaru Forester (2008–2013); Subaru Impreza (2008–2014); Subaru Legacy (2009–2012).