Norcal Dynamics Billet Oil Cap Breather BMW

ND is pleased to present the first and only plug-and-play crankcase breather systems. Simply take off your oil cap, insert the breather, and you'll immediately increase horsepower, enhance turbo draining, lower crankcase pressure, and give your engine compartment a stylish appearance. For ALL BMW applications that employ the two-prong oil tab style oil fill caps.

Can be used by itself with the stock PCV system to eliminate crankcase pressure, or with any number of PCV setups for the ultimate in crankcase pressure relieve.

Aluminum anodized stainless steel baffles for complete oil control, a high-quality filter, and clamp all work together to keep crankcase pressure where it belongs, out of your crankcase.

This breather will fit ALL BMW’s with the two-prong style oil fill cap including but not limited to N54, N55, S55, S54, S85, S63, S63TU, N63

Breather sits about 2-1/8″ tall from the valve cover oil cap area, and the filter is 2-3/4″ in diameter

Please note that hood clearance varies by model, and we can't guarantee fitment for all. If you're ordering the breather for anything other than an N54, close your hood carefully to check clearance. If it doesn’t fit, contact us for a refund upon return.

MODEL LIST WITH VERIFIED FITMENT NO CLEARANCE ISSUES: N54 E9X/E8X/E6X