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The Supertech High-Performance Valve Kit for the BMW S85 engine is meticulously engineered to cater to the specific needs of this V10 powerhouse
If you can't hear them
or anywhere else you like to display
a track-day machine that still needs to idle cleanly
Mini N14 Prince ARP Head Stud Kit 5451 The Supertech High-Performance Valve KitUpgrade your MINI N14 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.
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