Changes made on mine:
Battery relocation to trunk
Paxton Supercharger at 15# of boost
Custom built engine
4pt cage
Racing Seats
8.8" Rear Axle with 3:73 gears
Damn Vette kept drag racing me in the straights..it, of course pulled away (at least until I get this new engine with 80 more rwhp!), then I had to trailbrake like a mofo to keep from making him a hood ornament. He ended up getting flagged and talked to by the track for being an ass.