these valves are crafted from aerospace-grade alloys like EV8-Z18

these wrist pins will only work with CP Pistons

along with better dynamic fluid properties

Precision Tuning Required for Maximum Results

eliminating any possible pinion angle issues

5150 AutoSport Crank Seal Guard, BMW N54/N55/S55 BMIVN-1063S-16 these valves are crafted fromOn the BMW N54, N55, and S55 engines, the accessory belt is situated in an area where coolant and oil leaks are common. When the accessory belt is affected by even a mild leak, it can begin moving off of the crank pulley, causing the belt to fray. The tiny shards of rubber created by a fraying belt then work themselves into the crank seal, where they are picked up by the timing chain and begin to cause detrimental problems. A simple, cost effective