Durable and Heat Resistant: Built to withstand the extreme conditions of high-performance environments

resulting in unparalleled durability for your engine

-K&N cold air intake located inside front bumper

while allowing for a more efficient

often caused by inadequate spring rates

BMW S54 Upgraded Rocker Arm Shaft Kit valve springs Durable and Heat Resistant: Built5150 Autosport S54 Upgraded Rocker Arm Shaft Kit. These CNC machined shafts boast specialized oil holes and an oil connector bridge, guaranteeing optimal lubrication for your valve train. Whether you're on the road or the track, enjoy consistent operation, reduced wear, and heightened durability. Kit Includes: 1x High Performance Intake Rocker Arm Shaft 1x High Performance Exhaust Rocker Arm Shaft Oil Connector Bridge Replaces OEM Part Numbers: 11 33