while i was looking up a problem on my g/f dads car i came across this info on the a604 and some of its history so here ya go http://www.allpar.com/mopar/four-speed-automatics.htmlMods:CAI, OBX exhaust, Grillcraft grills, altezzas, ard ryver g6 17's wrapped w/ falken's, VIS racing c.f hood, 2 12" kicker comp's w/pioneer h.u, streetglow blue undercars, red dash kit, indiglo guages, n other shit