[Innoxx]

U should do your exhaust system and intake first, that'll give you a few extra horses, then do the wheels n suspension. Outside, well..... many things you can do but i like to make sure that it performs before it blinds you with it's beauty. PS, before you race you better know how to drive good first, you don't wanna wrap your car around a tree first time out, usually there are legal drag strips you can go to.