the thunderbird is a bit louder now Reply #15 – January 21, 2006, 03:46:40 AM I've got the Cherry bombs and stock stang headers and h-pipe on mine and it is louder and deeper then my stangs exhaust.The stang has 1 5/8" BBK headers and off road hipe, and flowmaster 40 series. 2.5" from headers, all the way back through tail pipes. Quote Selected