i think that he should get the free mods, of course, then get the upper i/c pipe , k&n fipk( or any intake thats cheap) , and an exhaust, i would recommend the dsmtrader.com place to start if on a budget, hell might even be able to get a manuel boost controler also with 500 bucks, never know.
laters
dave

2004 white mach1
k&n fipk,Meziere w/p,mac headers,o/r prochamber, bassani c/b, ported heads&intake,php 3/8" spacer,accel coils & hardcore wires, comp 106400 cams,03 cobra flywheel&clutch,456gear,FR 31spline axles & center diff. steeda shifter & quad adjuster

2001 svt lightning
magnaflow C/B,4lb lower,accufab t.b.,lfp E fan, FR waterpump,punisher VB,obx headers