i dont have a vibe, but i do have a pontiac. mins a grand am. i just wanna welcome you all to the pontiac family.my car is pretty well modified. heres my list:performance:ported lower intake manifoldpower slotted rotorstaylor 8mm spark plug wirescold air intakez-rated tiresexterior:custom front bumperpainted calipersstereo:kenwood deckkenwood 10 disc changerMB quart 5 1/4" front and rear separatesMTX amps (2 of them)2 12" subs (500 watts RMS each)phoenix gold 30 band EQi know i have more but those are the major mods.
i got my manifold from a place called http://www.streetarsenal.com and they do ported stuff for most fo the GM v6s and also some v8s. i plan to get ported upper intake, and throttle body soon too. i hope someday i coudl beat a vibe GT 6 speed at a track.