B58 PCV Diaphragm Cap Replacement Kit

Good quality part

Part is perfect, my car runs like new now. Diaphragm is perfect fit and spring too. Only thing is that the cap doesn’t fit as tight as OEM but I just reused my oem cap. NO BIG DEAL. I still kept the new cap as a spare.

Cap is not a great fit

As some of the previous reviewers stated, the replacement cap does not fit properly on the valve cover. The diaphragm and spring were a perfect replacement but I reused my old cap because it firmly snaps back on and the new one would not. Be careful removing your old cap so that you can reuse it.

Everyone needs one