My car sounds like a nascar when u start it up and I think its the tip thats makin the loud buzzzzzzz sound when I'm driving. Mines is loud during acceleration but while at a constant speed its ok
99 Zetec Atx Se
17's w/yoko H4 rubber
Green and Black interior
CTA + header + big pipes = very loud
89 Mustang LX (stock for now)