Quote Originally Posted by rafadavidc View Post
Starting with a 3.4" seems wise, of course. Why no PCM, though? EGR delete will throw a code, and I live in an emissions area. This goes double if I do the down pipe - aftermarket cats are a coin flip to throw an O2 code, from what I understand.
Sorry, wasn't thinking clearly. Either continue to use your EGR or get a PCM.

You can get quality aftermarket cats, but they're $200+ a pop.