Problem Statement:The factory S65 valve covers are made from Magnesium Alloy. While very light, Magnesium is known to become microporous. Over time gasses leak through the Mg material and form “pimples” on the valve cover surface. As it worsens, these pimples start to corrode the material underneath the factory coating. This continued cycle over time accelerates the oxidation of the covers leading them to fail and leak oil through the corroded areas of the vale cover. Mainly between the gasket channels. The magnesium valve cover is notorious for leaking around the edge due to oxidation and corrosion to the material having contact with air and water vapor which can not be fixed with a simple gasket replacement.
Benefits of the NRW Design Valve Cover:
Aluminum is not microporous and will not oxidize or corrode.
Aluminum is a proven material for valve covers used by many manufacturers across many different models for decades. The BMW S85 V10 valve covers are aluminum. (And do not leak)
1:1 design means the NRW Design valve cover is an identical copy of the original S65 valve cover. All ancillary parts like gaskets, bolts, oil caps, cam sensors, plug tubes, oil separators, and coil packs work like the original.
Powder coated with a choice of colors and finishes
It is cheaper than the original BMW valve covers
Lifetime warranty!
Does not include valve cover gaskets, seals, or oil separators.
