Diamond Racing Forged Pistons Set HD Pin Subaru WRX STi EJ257 100.5mm +1.0mm -22.0cc 8.3:1

SpecsBore Diameter100.5mm (+0.040in Over)Compression Ratio8.3:1Rod Length5.137in / 130.5mmStroke79mm StandardPinH-13 .905in x 2.500in x .225inPiston Features:3D milling on piston crowns for ready to install finishOffset pins for quiet operationMoly skirt c

$149.00 $1,022.00

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