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length and dimension

Supertech valve spring kits feature high-quality springs made from premium materials

Each camshaft is developed with meticulous attention to detail to ensure durability and consistent power delivery

- Ability to handle increased horsepower and torque

ARP Head Stud Kit, BMW S54 Type:ARP2000 11121722737The ARP 201 4303 head stud kit is custom designed for the BMW S54 inline 6 cylinder engine and serves as a replacement for the BMW head bolts 11127831862 commonly found in E46 M3 and E36 7 Z3 M Roadster, Z4 M Coupe and Roadster, and E46 M3 CSL. By installing ARP head studs on an S54 engine, you can enjoy several benefits, including increased clamping force and improved head gasket sealing, which can help prevent head gasket failure. This is especially