I wouldn't advocate information like this to one of the forum members, that doesn't present the implications of getting caught without one and the actual no BS performance results. Again, benefits would be minimal, espeically on the NA car. Your self fulfilling prophesy of superior gas mileage isn't an objective emphirical test and doesn't mean much to me, sorry. Not with-standing an increase in gas mileage, still doesn't reveal that these were properly functioning CATs when removed. In the mid 70's and 80's dumping the CAT's did work for performance, and the inspection for these wasn't strict. Many states, now look for cut outs, not just the presence of the CAT. Look up the penaltys before you advocate to young guys that they need to chop them out for a net gain of NIL. The states are only going to become MORE restrictive about emmisions checking, not less.

The after market CATs made by Random Technology are the way that professional shops go, especially with sensitive OBD2 cars. They are large and free flowing and don't cost much money. That's my advice to give if guys must do something with their CATs, but when you are talking about a 220 hp car, the minimal results don't outway the negative aspects of removing them.