i have seen camaros pulled over at stop lights for reving there engines,the reason they crack down on importes is cause they are louder at least the mustangs and shit have a ruble to them not a super high pitch..plus on a domestic the sound goes away cause there cars start pulling away,but on a import they just get louder and louder cause its no muffler on a AUTOMATIC you can make your car quick and quite i have done it and seeen it...i remeber when i first swapped in my lsvtec in my 96 civic i had to take it to get a new flang welded on so on my way to the muffler shop i got pulled over for it well after i got done the shop i pulled away I SAW THE SAME COP at gas staion i pulled in and showed him he was very impressed with the quite sound"oh i did not get a ticket from him"i was respectful to him when i got pulled over and did what he said so he let me go...unlike most that make threads and comp-lain about it