GrimmSpeed Head Gasket Set 1.1mm 2006-2014 WRX / 2004-2007 STI / 2005-2012 Legacy GT / 2004-2013 Forester XT / 2005-2009 Outback XT

GrimmSpeed sets the standard for high-performance gaskets, and the EJ25 Head Gasket Set continues that legacy. Designed for everything from basic engine refreshes to high-horsepower track builds, these gaskets provide reliable, precise sealing under extreme cylinder pressures.

Features:

• Multi-Layer Steel (MLS) Construction – Multiple grades provide optimal combustion chamber sealing
• Folded Stopper Layer – Ensures even sealing around the combustion chamber to reduce head gasket failures
• Nitrile Rubberized Coating – Accommodates imperfect mating surfaces up to 50 microinch RA
• Variety of Thicknesses – Available in 0.78mm, 1.1mm, and 1.5mm to match your build
• Oversized Bore Support – Fits up to 100mm bores, allowing 0.5mm overbore
• Head Stud Compatibility – Enlarged center bolt holes for up to 13mm studs

Performance Tested:
GrimmSpeed gaskets are designed for even, consistent sealing across the combustion chamber. Pressure-sensitive testing demonstrates that the gaskets maintain perfect sealing, ensuring maximum efficiency and reliability for all types of builds.

Fitments:

Single AVCS:

• 2004-2007 Subaru STI
• 2006-2014 Subaru WRX
• 2004-2013 Subaru Forester XT
• 2005-2012 Subaru Legacy GT
• 2005-2009 Subaru Outback XT