Description
Designed for high-boost Subaru EJ257 builds, these JE Pistons Ultra Series forged pistons deliver durable, high-strength reciprocating components for demanding import and sport-compact engines. Built with JE Pistons' Aligned Grain Flow forging and precision machining, the pistons include thermal barrier crown coating, skirt coating, and gas ports to support extreme cylinder pressures and improved ring sealing — all supplied as a set of 4 with a 99.75mm bore and 9.5:1 compression ratio for direct-fit performance applications.
Features:
- Forged Aligned Grain Flow forging technology
- Thermal barrier crown coating for heat management
- Skirt coating for reduced friction
- Gas ports to improve ring seal
- 99.75mm bore for exact fit
- 9.5:1 compression ratio, precision machined
- Set of 4 pistons included
- High tensile strength for boosted engines
- Made 100% in the USA
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