Greddy profec e-01 ? Greddy E-Manage? horsepower???????????????

[cholojr19]

ok heres my ? i just bought a sr20det black top ( supposedly has s15 turbo on it thats what the guy told me that sold ,me the clip) s13 clip, xs cat delete downpipe, walbro fuel pump, within 2 weeks gettin greddy fmic v spec, greddy intake manifold, hot pipe bov greddy rs, hks hiper exhaust, and some injectors( if any one knows what kind of injectors i should get lemme know), and greddy oil pan. now i want to get around the 300 horsepower range does anyone have any suggestions of what i can do to get up there without upgrading the turbo for now if its possoble? also i wanted to change the mafs to the z32 one. i read on a forumn that the computer wont be able to read it now and when i upgrade the injectors i woudnt be able to read them either which one would i have to get greddy e- manage or Greddy profec e-01? if i get the Greddy profec e-01 do i need the greddy e-manage ? i never had a sr20det before or a turbo charged car so bare with me