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20-1990-01
Relay Triggers
BMW E89 Z4 35is
2 × CNC-machined mounting brackets
with 33 mm intake valves and 30
Mini N16 Prince ARP Head Stud Kit 11517527799 20-1990-01Upgrade your MINI N16 Prince engine with an ARP Head Stud Kit. Unlike OEM bolts, these 8740 alloy studs are reusable, heat treated to 200,000 psi, and centerless ground for precise fitment. Engineered for ultimate cylinder head to block sealing, they prevent head gasket failure in high compression or forced induction setups. Each kit includes black oxide studs and hardened parallel washers for even torque distribution and superior durability.
