BMW N55 Pro-Xtreme Forged Piston Set Compression Ratio:9.5:1 and extend lifespan without the

and extend lifespan without the need to send your transmission in

you virtually eliminate the possibility of the crank bolt working its way loose

but it's crucial to know nitrous system types

This gasket replaces BMW part # 11121726619

Retainer: RET-BMS14-T1

BMW N55 Pro-Xtreme Forged Piston Set Compression Ratio:9.5:1 and extend lifespan without the5150 AutoSport Pro Xtreme Forged Pistons for BMW N55 Engines Built for Extreme Power and Precision The 5150 AutoSport Pro Xtreme Forged Pistons, manufactured by CP Carrillo, are designed to meet the extreme demands of high performance BMW N55 engines. Made from high strength, aircraft grade aluminum, these pistons deliver the durability required for turbocharged, supercharged, and naturally aspirated applications. Engineered for 2000 horsepower builds