Who sells an X pipe for a 1998 trans am A4

 

....i's an x-pipe, they're all pretty much the same other than dimensions, i don't there are any MADE for a SPECIFIC car...jus look around and find one with a decent merge and of decent size so it tucks up nicely (i wish i hadlooked for a good sized one, mines retarded big and it prevents the use of almost all dtiveshaft loops )

EDIT: here are some really nice ones...
http://www.burnsstainless.com/crossoversmain.aspx