CP Pistons & Rings Stock 86mm Bore for Evo X vendor_Clutch Masters 4in / R: -1in

4in / R: -1in

Part #: FOM-FMPACEV9

5-ply silicone construction black

ARP head studs for your Subaru WRX and STI ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality

Collars and upper mounts made from 6061 aluminum with T6 for increased hardness

CP Pistons & Rings Stock 86mm Bore for Evo X vendor_Clutch Masters 4in / R: -1inPart #: SC7220 From Drag to Endurance CP pistons have proven their quality in the racing community. These pistons for the 08 10 Evo X are avialable in 86mm stock bore, 86. 5mm w 0. 5 overbore, or 87. 0mm w 1. 0mm overbore and retain a 9. 0 compression ratio. These pistons are designed for high horsepower applications and are much stronger then OEM due to the forging process CP uses. The CP pistons for the Evo X 4B11 are an excellent choice for your