Had a very minor rear ender that required replacement of the rear bumper and the exhaust system. Had the "mopar" Borla exhaust installed as a replacement. The sound is much deeper than before. For some it may be too much. At lower RPM, say up to 3k its pretty loud, after that it quiets right down. As for performance increase, can't really tell. I would not have or recommend spending $700+ to replace a perfectly good stock exhaust with this, one unless you really want to hear the car but it was cool to get for free (insurance).