Review on 🔧 MITZONE Enhanced Performance Aluminum Valve Cover & Gasket Kit for BMW E82 128i, E9X 323i 328i, E60 528i, E70 X5 3.0si, E83 X3, E85 Z4, E89 Z4, F10 528i N52/ N51 SULEV by Bill Lyons

This is one of the worst made parts I have ever bought. The inside of the starter shaft is so rough it almost looks patched. All (very few) places that have been worked on the inside are gouged and deeply scratched, with the precision and care of a two-fingered man with a chisel and sledgehammer. Every opening in the cap is full of sharp edges. Aluminum flakes and powder coat the thing. All injection points are sharp, rough and, as shown in the video, have little or no fall off and contaminate your oil. I have never been so disappointed in a product or company. Shame on everyone involved in the creation of this article. If you install this in your car as is you are claiming further damage to your engine.