Maintains full use of Valvetronic and Dual VANOS for great throttle response and wide power band

fire-ringing helps to reduce blow-by (the leakage of combustion gases into the crankcase)

Each spring is crafted from high-strength chromoly steel

The Samsonas 4 / 5 / 6 (+ reverse) full Sequential Gearbox for BMW E90 / E92 / E93 NON-M models equipped with BMW N54 / N55 Engine includes Samsonas Motorsport Sequential Gearbox

Mini N14 Prince ARP Head Stud Kit 6062 Maintains full use of ValvetronicUpgrade 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.