24-09-2014, 09:56 AM
If it were me, I would simply put a bigger turbo on it. Something like a gt2052 or 56 in wastegate form for ease of install. Then get the mapping sorted. You'll easily see another 15/20hp and it should tide you over. If you feel you need more, then like poodle says there is a list as long as your arm of things you need.
JP