Eliminate your old rubber grommet that wears out and creates a vacuum leak / lean code. replace it with this factory style grommet, that allows you securely attach a high end GT500 PCV or a -10an fitting for catch cans.
NOTE:It is recommended you epoxy this onto the valve cover do not just place it in, we recommend J-B Weld KwikWeld Epoxy 50176 (DARK GREY)
