So you want torque? Get a small turbo like K03 from 1,9 or K14, not bigger. Or if you like to play a little more, then vnt. Good thing, that you already intercooled it. What about exhaust? Get 2,25" minimum, turbo to back. Modded stock pump will be fine for up to 130hp and stock injectors will be fine too (if in good condition).