What are some websites that i can get aftermarket car parts for my malibu. I can't find anything.

here, check these out:
http://www.mantapart.com/ (http://www.mantapart.com/)
http://www.doctorspeed.com/ (http://www.doctorspeed.com/)
http://www.rsmracing.com (http://www.rsmracing.com)
http://www.dealershipdesigns.com/malibu.html

the rsmracing site even has a supercharger for the Malibu (it's too expensive though).
the doctorspeed web site has parts for the Pontiac Grand Am, but a lot of them will work on the malibu.
Hope this helps.