hey mate,
we stock a few parts that could help you out...
Depending on what power you want...But you won't make much more with the stock turbo with your dump & current tune maybe 10-15kw if that..So if your looking to upgrade the turbo I would probably go Blouch 1.5xtr or GCG GTX2867R...the blouch has different compressor housing so you'll need a PW intercooler as well. But the CGC turbo has the correct compressor cover, so you could go with a Mishimoto Intercooler which is cheaper than PW.
To support those turbos you'll also need:
ID1050x Injectors
Fuel Pump
Intake & Silicone Inlet
Headers - Maybe
We can supply these parts except for CGC turbo...PM me or email
kobemotorsport@gmail.com and I can hook you up
Who tunes your car?