Cosworth Cylinder Head Stud Kit 11mm Subaru WRX STI EJ25 & EJ20 2.5L 02+
Ultra High Performance Cylinder Head Stud Kit. Essential for high performance engine builds, heavy duty head studs reduce cylinder head movement in high boost or high compression engines optimizing cylinder head to block sealing. Heavy duty main studs keep main bearing caps located and reduce crank flex in high rpm applications. Cosworth Ultra High Performance fasteners are manufactured from high tensile strength steel and comes complete with nuts and washers.
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WARNING: Cancer and Reproductive Harm