Review on High-Quality Aluminum Valve Cover Kit: Enhance Your BMW E46 E39 E60 E83 🔧 E53 X5 X3 325CI 325I 325XI 330CI 330XI 525I 530I 330i Z4 with OE 11127512839 by Jonathan Germain

After installing the M50 manifold and filter on my M54B30, I began to have several small leaks around the stock plastic valve cover, presumably due to increased crankcase pressure. My original valve cover had almost 200,000 miles on it and probably still needed replacing. I didn't want to fiddle around with the M56 valve cover rebuild and came across this aluminum valve cover. Delivery was fast, the valve cover was very well packed. Started immediately without changes! Has been running for 3 weeks now with no leaks. Very happy with the results and would definitely recommend this as an upgrade to any M54 plastic valve cover!