Hmm
 

What exactly does one have to do to upgrade these turbo ? - I am in india and a lot of local ppl do this kind of stuff u just have to guide them - mine is a 1g-gteu twin turbo just got a 2.5 in exaust and now working on the turbos -

So letsay i go to the turbo dude
what should i ask him to do to these 2 turbos ? :)