Manley 79mm +4mm Stroker 92.5mm +0.5mm Bore 8.5:1 Dish Piston & Rings 98+ Subaru WRX (EJ205) Eclipse_1989-1994 We recommend using these stiffer

We recommend using these stiffer valve springs and lighter retainers when upgrading cams

but GrimmSpeed is one of the first to offer this technology to the Subaru world

without over stiffening the spring rate and affecting ride quality and shock lifespan

Complete Wiring & Installation Kit

Manley 79mm +4mm Stroker 92.5mm +0.5mm Bore 8.5:1 Dish Piston & Rings 98+ Subaru WRX (EJ205) Eclipse_1989-1994 We recommend using these stifferPart #: 620005C 4 Manley forged and dished pistons for the EJ205 are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Round wire locks, tool steel wrist pins and piston rings are included with every set at no additional charge. A proprietary multi step top ring groove machining process assures optimum control of the groove's size, geometry, flatness and finish. Precise pinhole