Talking from experience... I would probably not do long tubes on a V6 again. I had the 3.8 in my '01, and the cost, time, and effort was not worth anything I got out of it. I did not notice a power difference. I went from factory exhaust to long tubes, off road h pipe and flowmaster super 40s. Even with that drastic swap, the only thing i noticed was a decent idle/low rpm sound.