sharper throttle response

milder profiles enhance everyday driving with smooth power delivery

these B48 Ferrea valves deliver exceptional performance and reliability

providing enhanced stability and reducing load loss

ARP Head Stud Kit, BMW S50B30/S50B32 EURO hpvk sharper throttle responsePlease Note: CA 625+ Head Studs are currently out of stock, 6 8 week lead time. This custom ARP head stud kit is designed specifically for the European BMW S50B30 Single VANOS and S50B32 Dual VANOS inline 6 cylinder engines, which are commonly found in the following applications: 1995 1999 E36 M3 (excluding Canada and the United States) 1996 2000 Z3 M Coupe and M Roadster (excluding Canada and the United States) Installing ARP head studs on an S50B30