Crankshafts

Shop Subaru crankshafts at IAG Performance for WRX and BRZ EJ20 and EJ25 engines, including OEM Subaru FHI crankshafts and Manley billet stroker crankshafts. A quality crankshaft is the heart of any short block build, from stock-replacement to stroker applications, with Manley's billet options available in multiple stroke lengths for builders chasing increased displacement