Featuring an exclusive 58mm inducer GEN2 CEA® (Competition Engineered Aerodynamics) compressor wheel machined from a 2618-aluminum forging and a 62mm CEA® turbine wheel

F22 / F23 230i xDrive

optimizing engine performance

known for their strict quality

Enhanced throttle response and broader power band

ARP Main Stud Kit, BMW M20 E85 Featuring an exclusive 58mm inducerThe ARP Main Stud Kit has been expertly designed to work seamlessly and replace BMW Part #11111735525 for the BMW M20 B20, B23, B25, B27 engines, which were utilized in various BMW models such as the E12, E21, E28, E30, E34 3 Series, 5 Series, and 6 Series. Upgrading from factory main bolts to ARP Main Studs is a simple, yet greatly beneficial upgrade. ARP Main Studs offer the following benefits: Uniform Clamping Force: ARP Main Studs provide a