I installed a 5" turbo back exhaust without muffler and tuned it, runs great. However, the low end RPMs sound almost slightly raspy but the higher RPMs(might be higher gear) sounds really deep and loud... not too bad. I was wondering if the possibility exists to install a muffler in place of the race pipe without doing a lot of modifications. Ideally, I'd like a deep low aggressive tone without rasp so debating muffler options IF they exist... Thanks!