i posted once before but i guess i'm not well liked around here or something. anyone got any good sites for performance parts for a 2005 chevy malibu classic ( i know you're thinking it ain't worth it, but help me out).
How exotic do you want to get? You may try "grafting" Malibu Maxx SS parts onto your previous generation Malibu... Maybe even stuffing a 4.3L engine into it - I saw that on a GM skunk works car at a show once.
You might also try giving Jim Pace Performance Parts a call. I think they are at paceparts.com. Good luck.
From a GM Performance Parts catalog, I believe that do make performance parts for an Ecotec engine, like in a Colbalt or Saturn Ion. I am not sure if those parts are geared specifically towards the Colbalts or Ions, but worth looking into.