the factory systems start to show their limitations

they are the perfect fit for turbocharged builds

Its AISI 304 stainless steel rings embed into the aluminum head for superior sealing

(5) B Hub Plates (OEM = 5)

effectively eliminating valve float and ensuring optimal power delivery at high engine speeds

BMW B46 Valves by SuperTech F87 the factory systems start toThe SuperTech High Performance Valve Kit for BMW B46 Engines is expertly crafted to meet the needs of enthusiasts seeking improved performance, durability, and reliability. Designed specifically for the B46 4 cylinder engine, this kit is ideal for applications demanding high power output and efficiency, including racing, street performance, and track use. Engineered with precision by SuperTech, a trusted name among engine builders, these high