Hi new here and new to subaru's, actually cars altogether lol... only 21, moved from a corsa to a scooby lol, bought myself a subaru impreza turbo 2000, roughly around 280-300bhp (remapped, 3" decat stainless steel exhaust, hks mushroom induction kit filter, baileys dump valve, upgraded intercooler).. was wondering if a larger turbo could replace the standard one to give it more bhp? And anyother mods and stuff that could add more bhp to it?? Thank you