check this place out
http://www.celicasupra.com/vbforums/
check in the vendor section, ull find a lot of things from air intake, engines, suspensions, anything.
and its
www.rabidchimp.com that place has lots of great stuff.
havnt tried it personally cus im a highschool student i dont have a job, but im for sure going there for my stuff in the near future.