I currently have an adapter, but the opening is 2.5" and the MAF is 3.25", so I am loosing .50". Where can I get an adapter that will mate up to the MAF, there are tons for the newer trucks, but none that I have been able to find for the older ones. I measured my MAF to a friends with a 2000 F-150 4.6, and his was bigger than mine . When I measured it, this is what I got, is this right? 3.25" at the inlet (82.55mm) and 3" at the exit (76.2mm). When people say they have a 90mm MAF are they talking about at the inlet or the outlet? I need to find an apter that will fit this thing, I just need to figure out what size it really is. I know a 90mm L MAF is actually 92, is mine a 75?