SUBARU 2002-2005 IMPREZA WRX EJ205 - ASYMMETRICAL Asymmetrical FSR Style Piston Uses a 2.250" Long Pin Designed for 1.0 x 1.2 x 2.8mm Rings Dome/Dish requires no deburring or preparation 2618 T6 high tensile forged aluminum JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Dome and dishes feature smooth flowing radii for excellent flame travel. 1.2 x 1.5 x 3.0mm & 1.0 x 1.2 x 2.8mm ring widths. .905 x 2.500 (Full Round) & .905 x 2.250 (FSR) straight wall carbon steel wrist pin provided. Pin fitting and Tru Arc locks included Rings Now Included
