CFD-optimized

and their Honda B16A piston set is designed to improve the engine's power

as found in the iconic E30 M3

BMW Part Number: 11 11 8 664 905

N62 CNC Cylinder Head Porting 11241721471 CFD-optimized5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW N62 V8 Engines Please note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please contact our sales team. Also note that this service includes a 1 2 week turnaround time for service completion, beginning when the 5150 Team receives your head. Investing in cylinder head porting for your high performance BMW engine enhances airflow efficiency