EJ257 04-07 STI - Bottom End Engine Parts - Pistons

Diamond Racing Pistons
SKU: DIA 36034-4-H
DIA 36034-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 Long Rod 100.5mm -8.0cc 9.6:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36034-4
DIA 36034-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 83mm Stroker 100.5mm -8.0cc 10.1:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36032-4-H
DIA 36032-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 Long Rod 99.75mm -8.0cc 9.5:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36031-4
DIA 36031-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 99.5mm STD -8.0cc 9.5:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36030-4
DIA 36030-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 100.5mm -16.0cc 8.8:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36028-4-H
DIA 36028-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 83mm Stroker 99.75mm -16.0cc 9.1:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36027-4
DIA 36027-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 99.5mm STD -16.0cc 8.6:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36025-4
DIA 36025-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 83mm Stroker 100mm +0.5mm -26.0 cc 8.2:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36022-4-H
DIA 36022-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 100.5mm +1.0mm -4.5cc 10.1:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36021-4-H
DIA 36021-4-H Diamond Racing Forged Pistons HD Pin WRX STi EJ257 75mm De-Stroke Rod 100mm +0.5mm -4.5cc 9.5:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36020-4-H
DIA 36020-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 99.75mm +0.25mm -4.5cc 10.0:1

Regular price $831.98 USD

Regular price Sale price $831.98 USD
Unit price per
Diamond Racing Pistons
SKU: DIA 36020-4
DIA 36020-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 99.75mm +0.25mm -4.5cc 10.0:1

Regular price $764.00 USD

Regular price Sale price $764.00 USD
Unit price per

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DIA 36034-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 Long Rod 100.5mm -8.0cc 9.6:1

DIA 36034-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 83mm Stroker 100.5mm -8.0cc 10.1:1

DIA 36032-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 Long Rod 99.75mm -8.0cc 9.5:1

DIA 36031-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 99.5mm STD -8.0cc 9.5:1

DIA 36030-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 100.5mm -16.0cc 8.8:1

DIA 36028-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 83mm Stroker 99.75mm -16.0cc 9.1:1

DIA 36027-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 Long Rod 99.5mm STD -16.0cc 8.6:1

DIA 36025-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 83mm Stroker 100mm +0.5mm -26.0 cc 8.2:1

DIA 36022-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 100.5mm +1.0mm -4.5cc 10.1:1

DIA 36021-4-H Diamond Racing Forged Pistons HD Pin WRX STi EJ257 75mm De-Stroke Rod 100mm +0.5mm -4.5cc 9.5:1

DIA 36020-4-H Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 99.75mm +0.25mm -4.5cc 10.0:1

DIA 36020-4 Diamond Racing Forged Pistons Set Subaru WRX STi EJ257 99.75mm +0.25mm -4.5cc 10.0:1

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We’re working on uploading our complete parts lineup. Want to order something now? Just email us — we’ll get your order submitted and on its way.

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