Depending on what power and application you want your car for. Pretty much upgrading any supporting mods before you get a turbo would be the best idea i believe. Fuel pump, injectors,
ECU, Bigger Cooler/FMIC, exhaust, blah blah blah.
Leave stock rims on so you can take less heat from the ol five ohh and chop everyone when u get a stickser that im going to put on my car that says....."Lawn bowls for life".