Whether you're optimizing your M20 engine for the drag strip or street use

depending on the selected bore size:

or competition-level racing

from street bully to all-out track car

2005-2010     E63/E64     M6

BMW S85 Valves by SuperTech 220iX Whether you're optimizing your M20The Supertech High Performance Valve Kit for the BMW S85 engine is meticulously engineered to cater to the specific needs of this V10 powerhouse. Designed for high performance applications, these valves ensure superior durability and reliability, making them a top choice for enthusiasts and professionals alike. Supertech has established itself as a trusted brand among engine builders, renowned for its commitment to precision and quality. Each valve