A forged piston set for the BMW N20B20 turbocharged 4-cylinder engine, built to an 84mm bore with a 5/16 ring pack and supplied together with connecting rod bolts. Comparable N20 forged-internals kits from performance manufacturers use 4032 forged-aluminum pistons with a 10.2:1 compression ratio, a 22mm pin, and ARP-grade bolts, aimed at engine builders assembling a stronger short block for boosted N20 applications.

Fitment: BMW 2, 3, 4 and 5 Series models (chassis F22, F30, F32, F10) fitted with the N20B20 turbocharged engine.