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 Mitchell Norman

It took me about 6 hours to replace them. Do yourself a favor and remove the metal bracket (two torx screws) from the passenger side of the valve cover next to the firewall and remove all the screws from the old valve cover before attempting to remove it. Also remove the cabin air filter to make room for yourself; I fiddled with this for 45 minutes before realizing that removing the clamp made the process that much easier. Do the same for the new valve cover, remove the above bracket and reinstall it once the valve cover is in place. The biggest problem was the PCV hose on the rear valve cover. I broke the hose trying to remove it (went to Napa and bought a 3" piece of hose and two clamps instead of removing the intake manifold to replace the entire hose. Overall I'm happy with this one valve cap and even more pleased I don't smell any burnt oil from the leaking valve cap I replaced.