Most Fords, like the Mustang, have 2 cats on either side of the exhaust. From what I was told, you have to find the ones that are meant to replace two cats with one. I guess they are a little larger than the others, but still less restrictive than stock. Most, if not all, muffler shops should have them.
Caymon
__________________
'90 GT Under construction
Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!!  
04 F-150 STX 4.2L 5 spd
Rice Haters Club Member #128
|