the Ultra-Lite design significantly reduces rotating and reciprocating mass

Designed for engines running our special oversized B58 head studs with ARP insert washers

2006 - 13     E90 / E91 / E92 / E93     330xi

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consistently outperforming competitors on both the track and the street

CP Forged Piston Set, BMW S50 Pro-Xtreme Compression Ratio:13:1 the Ultra-Lite design significantly reduces5150 AutoSport Pro Xtreme Forged Pistons by CP Carrillo for BMW S50 U. S Engines Designed for E36 M3 owners seeking serious performance upgrades, the 5150 AutoSport Pro Xtreme Forged Pistons are built to handle the extreme demands of high horsepower S50 engines. Made by CP Carrillo, these pistons utilize aircraft grade steel, providing exceptional durability and strength for turbocharged, drag racing, or street strip applications. Unmatched