ARP 234-3724 Head Bolt Kit for CHEVROLET LS Gen III LS Series small block (2003 & earlier). two lengths. ARP2000. 12pt ymm_16 If the car is equipped

If the car is equipped with performance exhaust with electronic valve actuators than actuator set P-HF1006 is required and the Akrapovic sound kit P-HF1003 can not be used

Compatible with Akrapovič smartphone app (iOS & Android)

which is distinctly different from the X5M with a stock system

Weight: 10

Fits Following Engines: 267 CID Chevrolet Small Block Generation I

ARP 234-3724 Head Bolt Kit for CHEVROLET LS Gen III LS Series small block (2003 & earlier). two lengths. ARP2000. 12pt ymm_16 If the car is equippedChevrolet LS Gen III LS Series small block (2003 & earlier), two lengths, ARP2000, 12pt ,Head Bolt Kit Fits Following Engines: LS Gen III LS Series small block (2003 & earlier)