I just recently purchased a 2003 GT with a 5 speed, 3.73 gears, bassani catback exhaust, short throw shifter, subframe connectors, driveshaft safety loop, 31 spline rearend with cobra locker, K&N air filter and Mach 1 suspension. I was wondering what bolt ons would you guys recommend doing? I was thinking of of replacing the plenum, throttle body and buy a tuner. What do you guys think?
