JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons
JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons

JE Pistons Ultra Series - Subaru EJ257 99.75mm 9.5:1 - Set of 4

JE Pistons SKU: JEP361331
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JE Ultra Series forged piston set for the Subaru EJ257 (STI). 99.75mm bore, 9.5:1 compression. Uses JE's Aligned Grain Flow forging for maximum tensile strength, with a thermal-barrier crown coating, skirt coating, lateral gas ports and Trend high-strength wrist pins — built for high-boost power-adder builds. Made in the USA. Set of 4.

Specifications

Type Ultra Series forged piston set
Engine Subaru EJ257 (STI)
Bore 99.75mm
Compression 9.5:1
Features Aligned Grain Flow, thermal-barrier crown, gas ports
Material Forged aluminum
Quantity Set of 4
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