check dsmtrader for 16gs and i am not sure what a t 25 turbo but i know big 16gs can go 25psi

you can go up to 17lbs on that in. plus it depends i heard on the east coast they got higher octane which means you can boost more without worrying about blowing your engine. Here in cali we only got 91. I would go next next with getting a big 16g not as much lag as bigger turbo spools up around 2800rpms.

depends on the mods and if the engine was just rebuilt. i know guys that have done a stock rebuild on there 4g63s and able to 12s

down load a couple of pics check item out