[texan]

well since you have the 5.0L motor, you've also got Ford's EEC IV OBD1 computer, which doesn't monitor catalyst function. I've never wrenched on the forward H pipe section of a '95 Mustang, but unless there are O2 sensors after the cats (and I don't think there are) you're fine. Just realize there is no way the motor will pass an emissions test, but if I remember right Colorado is a great place to be for slack emissions laws. Hope this helps, peace.