Cosworth High Performance Head Gasket Subaru WRX 2006-14 WRX STI 2004+ EJ255 EJ257 101mm 1.1mm

Cosworth High Performance Head Gaskets are engineered to seal in power under the most demanding conditions. Constructed from stainless steel with a folded stopper layer, each application features superior sealing compared to conventional multi-layer steel gaskets. Additionally, Cosworth High Performance Head Gaskets are manufactured from pre-coated die cut stainless steel resulting in uniform coating distribution and consistent shape.

Each gasket is carefully engineered with the following features:

• Individual die cut layers of stainless steel with superior consistency compared to laser cut gaskets
• Pre-coated stainless steel with a 0.25 micron layer of nitrile rubber ensures consistent distribution of coating with no high or low areas
• Manufacturing dimensional tolerance of  +/- 0.001"
• Die cut manufacturing process ensures smooth edges, unlike laser cut gaskets
• Cosworth gaskets feature a "folded stopper" layer for additional clamping force around each cylinder.  The width of sealing area is specific for each application thereby providing ultimate sealing properties
• Available in a range of thicknesses for specific applications