JE Pistons for Subaru STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons Sensors The security/immobiliser lamp may remain

The security/immobiliser lamp may remain illuminated in some models

with a built/ported head

Cooper Rings are oversize (also fits for oversize bores)

Since the exhaust runners are CNC bent and trimmed as a single piece there are no additional welds to introduce points of failure or junctions that would interrupt flow

direct replacement or upgrade to the standard

JE Pistons for Subaru STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons Sensors The security/immobiliser lamp may remainDIMS: 10. 25 x 5. 75 x 5. 5 SUB: Forged EJ Pistons As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for European, import and sport compact applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag