2009 Honda Odyssey V6 3.5L i-VTEC Front & Rear 2 Piece Valve Cover Set TRQ VCA88981

Out of the box these look great. They are painted, come with nice gaskets and tube seals. I've replaced multiple valve covers on Honda/Acura 4 & 6 cylinder engines. Installation was a breeze, torqued everything down and in the right sequence per Honda specs. Fired it up and had a high idle which can be expected when removing the throttle body, so I did the idle re-learn procedure...over and over again, but couldn't get the idle down. Thought it may have been a vacuum leak, so I pulled the OEM PCV valve (which seemed very tight upon initial installation) and installed a new one, but still had an idle issue. I gave up and brought it to a professional who smoke tested it, didn't find any leaks, so they blocked off the PCV hose from valve cover and the test passed. Diagnosis was "aftermarket valve cover causing issue". They installed a new front OEM valve cover and everything is perfect...$903.36 later. You may have a different experience, but if I had to do it again, I would buy OEM...at