i have a 93 mustang that has an explorer intake setup on it and I am seeing two different pcv valves possible for this. It is apparently a 97 up explorer intake because it does not have the egr passage incorporated in it. The pcv for it is a different part number than the one for 93 mustang. The one I have in it now is a little loose. I bought it from Lmr.com with a new grommet and screen. Should I get the setup for the 97 up explorer?