so its not turbo guessing u have the 2jzge not the 2jzgte you can go with a turbo conversion kit, run like a t4 get you up to about 525hp with a few small adjustments like fuel injectors and such, is it manuel or auto and u cant really do an engine swap like if u wanna change the 2jzge to 2jzgte because you'd hafta change trans and all sorts of stuff end up costing you as much as a twin turbo supra itself, but with the single turbo kit you can easily get your supra up to 500hp kit cost about 2000 with the small other mods to bump up horses i looked into it because i am gettin a 95 blue targa non-turbo so did alittle research