Torque Specs: All studs torque down through 3-equal steps to 95 ft lbs

*S55 option features:

• (14) 11mm ARP Head Studs

• (14) ARP Washers for 11mm Stud

• (14) ARP Nuts for 11mm Studs

Install Tips: Entirely Bolt-On kit, NO modification necessary, threads right up as factory stud replacement!

Torque Specs: All studs torque down through 3-equal steps to 95 ft lbs

ARP engineers designed and assembled this kit with high grade material, specifically so S55 owners have a PROPER kit that does not fail over time, such as the retro-fit Chrysler and Volvo head stud kits.

ARP is the world leader in fastener technology. Makers of the finest fasteners in the market, especially for BMW engines, ARP is the brand you can count on when you want the highest reliability possible. If you are looking for high performance from your BMW engine, then ARP Head Stud Kits are a must. All kits come complete with hardened parallel-ground washers and aerospace-quality nuts.

ARP is used on ALL Best engines built with over 1000Hp

• Protects the threads in your S55 engine block.

• Significantly stronger than other stud kits

• Trusted around the world by top race teams