Ok, well I received my K&N 3530 filter today...its a nice and big unit!

I measured the 70/75mm MAF adapter I bought from duratecperformance.com ...

Oddly enough, the inner diameter (gasket side) is a hair over 80mm. The outer diameter (flange side) has an 85mm diameter. I mated up the filter and the adpater and there is a little play, but I guess that'll be eliminated when I strap down to the metal brace.

Looking forward to installing it this weekend!

1998 E0 Ford Contour SVT - DOB 8/19/97 - #3101/6535 Silver Frost/Midnight Blue Visit MY SVT website * K&N RU-3530 (howls like a MOFO ) and Homemade Heatshield *