Ricksta,

Just about any turbine will fit any motor with the proper adapter. On a gen2 3sgte you'll get around 300whp using that sort of turbine and on a gen 3 about 320-350whp..

Thing is, you cant just slap a turbo on. You need supporting mods like clutches, intercoolers, boost controller, adjustable FPR, injectors, EMS, custom turbo manifolds, and lots of other parts to make it all work.

To go from NA to turbo is a large jump in HP and price over operating a stock car. To go from turbo to a larger turbine, it is almost equally more expensive. To get your celica doing 350whp on 93 octaine gas and everyday drivable, it would mean about $10,000 or so.