JE FSR Forged Pistons Subaru EJ255 WRX EJ257 STi with EJ205 Head 99.75mm +0.25mm -26 cc 8.5:1

This is the newer FSR (Forged Side Relief) skirt style. JE is slowly transitioning all of their applications over to this superior design. The FSR forging allows unmatched strength while shedding unnecessary weight through machining. In short, they are light, and strong, and they are the future of pistons. JE has lead the Piston market since the very beginning. All of the big boys making noise in the industry right now use JE because of their superior design and strength. This is a top of the line piston that one would use to build the ultimate street engine or a reliable race engine. All pistons come balanced within one gram, include pin lock grooves and wrist pins at no additional charge.

SUBARU EJ257 BLOCK WITH EJ20 HEAD "FSR"

• New high strength FSR forging design! JE Pistons new FSR forgings are both strong and lightweight! The new FSR design has undergone extensive on-track testing to ensure flawless performance under the most demanding conditions.
• 2618 T6 high tensile forged aluminum
• Specifically engineered for high horsepower Subaru engines.
• Dome and dishes feature smooth flowing radii for excellent flame travel.
• 1.2 x 1.2 x 2.5mm ring widths.
• .905 x 2.500 straight wall carbon steel wrist pin provided.
• Pin fitting and Tru Arc locks included
• JE Pro Seal Rings Included
• Piston Profile Matches EJ20 Chamber Profile