OK, OK, OK!
I like the responses...but they don't answer my question. I'm trying to understand why a set of longer or shorter (I don't know which yet) is better than the other. What are the trade-offs?
I appreciate the suggestion to install true duals. I also like the side exit idea with twin pipes (although I think I would like to keep each pipe truly separate). [I digress, I can't install true duals. I live in California. California's smog laws present too many headaches for me. For now, I would like to stick to cat-back mods.]
So, to express my area of interest (question) differently, what are the trade-offs of a shorter exhaust piping route (side exit) versus the stock path (out back, under the rear bumper)?
Thanks for your responses.
Mike