95 celica st
 

Hey can I put a turbo on my Toyota celica without changing my pistol

That depends on what pistol you prefer - are we talking Glock, Colt, or Ruger?

Seriously, if you mean pistons and had autocorrect get a bit silly, it should be fine as long as you don't get greedy with boost, try to use octane that's too low, and tune it to keep the motor out of detonation.