i just bought a 01 bullitt and i was wanting to know what are good performance upgrades for it. ive added a bbk offroad x-pipe and its got dual flowmasters, but thats as much as i know about the car its self. ive always wanted a newer mustang but know very little about the modular motors let alone what all comes in the bullit package.
For the most part, besides the intake manifold, most upgrades will be the same as the GT's on the regular forums. Just don't pay attention when someone tells you to get an upper plenum and 75mm throttle body, you already have a twin 57mm one. Most everyone on here will tell you about the same thing, CAI/RAI, Headers, Gears, cams, a tuner, suspension(yea the bullitt comes .75" lower than a GT, but to me didn't make that much of a difference). Don't worry about underive pulleys, you already have performance ratio pulley's.
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01 bullitt - 
