A bigger front wheel and 0.7 front cover should get you there on the gt3582r turbo, theres quite a few different combos of the xr6 turbo, some guys are running a gt3566. All dependant on your other mods as well, E85 or pump fuel? Manual or auto? Your best bet is to speak to your tuner or call ETM or 6boost as they can do a package deal since your going a aftermarket manifold.