if you wanna do it.. use two t25's off a ca18.. they should work well and if your after a gain after that just upgrade to the t25g's then to t28's off a s14/s15 they are all the same flange so the two original manifolds you get made up will be fine. youll need fuel pump, fuel pressure regulator, bigger injectors, fmic, custom exhaust manifolds (obvouis but had to mention) a computer that will use a map sencor.. cause it will just be easier.. but mostly up to personal preferance. .. the r33 gtst box should be fine.. a good clutch.. you could use different diff gears to keep the turbos on boost if they drop off.. id sujest getting cams and cam gears.. help bring turbos on boost if there is problems???.. what else is there.. anyway just from the stuff iv said that will cost a lil bit more than 2000 bux.