Quote Originally Posted by stkks View Post
What about headers and/or a downpipe? Would this be beneficial with the stock exhaust. And this is a CompG we are talking about. Or should I get a better exhaust set-up, then work on headers and a downpipe? I am not good with any of this. And I would think if I was to put in an aftermarket PCM that would void my warranty.
I assume by downpipe you are not referring to the ones that come with headers, so they are mutually exclusive. Headers OR Downpipe. A downpipe and Power Log are a good exhaust combo for a mild to moderate setup. Save the money you would otherwise spend on headers for other go fast goodies. The stock exhaust from the cat back is not restrictive until you are in the 12 second range. So there is no need to throw away money on it unless you obsessed with getting a certain sound (and the 3800's exhaust doesn't sound good anyway IMO).

Doing exhaust modifications is going to void your warranty faster than a PCM. The beauty of a PCM is, if you are willing to swallow the core charge and keep your stock PCM, you can just change your aftermarket PCM for the stock one in a few minutes.