2010-2018 BMW S1000 RR, R, XR CNC Cylinder Head Porting Service
Part Number: M1-K46018291-00
2010-2018 BMW S1000 RR, R, XR M1 CNC Cylinder Head Porting Service is designed and flow tested for maximum port velocity and air/fuel mixture. The ports are thoroughly revised on both intake and exhaust ports.
(Note: this is a performance service and you must ship us your complete and undamaged cylinder head for modification and return to you. CNC Valve seats are additional, if needed). Please allow 7-14 working days turn around time. Assembly additional.