Gutted Cats vs. test pipes

[davidf]

On a normally aspirated car, they're not going to add any performance. They're just going to make your car stink, and add to pollution in the environment. Leave them alone.

It really stinks? I considered doing TP's to shed a few unwanted pounds and get some heat out from under the trunk area. I have GTLW but don't want it any louder than it already is. BTW we don't test here. {for now}