ive never really posted anything since i got my stang back in january but been keep up with everything so i know that this probably got asked alot already but still.....i have an 03 gt i got for a sweet price of 16500 back in jan and it only had 1500 miles on it. i put 3.73s and i have a bassani bx catback on it. took it to the track and i ran a 13.73 at 101.2. it aint bad i but i cant beleive how easily every ls1 spanks me all the time!!! i mean i was looking for a decent firebird instead of the stang but couldnt find one before i found my gt. i know that bolt ons wont work that great for hittin serious power so i was wondering superchargers how much do they cost for an install usually...and id be goin for a centrifugal...or how much can i get a 5.4 for can it be done? how much for the engine how much for the install???? i need prove it aint a lame horse!!!!