Manley 99.5mm STD Bore, 9.8 Comp. Pistons Subaru WRX 2006-2014 / STI 2004-2021 Vehicle Model_Lancer Ralliart steel-backed Carbon-Kevlar disc

steel-backed Carbon-Kevlar disc

More consistent horsepower across the RPM range

Torque Capacity: 289 ft/lbs at the Wheels

NOTE: A Short Ram intake like the TurboXS WS-INTAKE is required to install the WS-FMIC

and 3in rear-mid pipe with muffler

Manley 99.5mm STD Bore, 9.8 Comp. Pistons Subaru WRX 2006-2014 / STI 2004-2021 Vehicle Model_Lancer Ralliart steel-backed Carbon-Kevlar discPart #: 612100C 4 Manley forged and dished pistons for the EJ257 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