2 year/unlimited mileage warranty

and system noise

whether you're cruising to your local car meet or tearing up the track

or coolant

BMW 335i GT xDrive L6 (3

N52 CNC Cylinder Head Porting 1827 2 year/unlimited mileage warranty5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW N52 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 for