CP-Carrillo pistons are the best choice for any S38B38 engine and application

1996-1998  E39  520i / 523i / 528i

- Higher displacement offers greater power output and torque from increased cylinder volume and improved air-fuel mixture combustion

10AN Oil Return Block Fitting [use factory bolt and O-ring]21

By using ARP head studs

ARP Head Stud Kit, BMW N54 S52 CP-Carrillo pistons are the bestUpgrade the performance of your BMW N54 engine with our custom designed Head Stud Kit, brought to you by ARP the world leader in fastener technology. This ARP2000 kit is engineered to replace BMW part # 11127574303 and is compatible with BMW N54B30 turbocharged inline six engines found in a range of models, 135i, 335i, 535i, Z4 sDrive35i, X6 xDrive35i, and Alpina B3 Bi Turbo. This kit comes with 14x 11mm Studs, 14x Washers, and 14x Nuts offering