Honestly, i don't see how the t3 t4 puts out any more air. 10 lbs. of boost in the manifold is 10 lbs. of boost. Temperature wise is where the two turbo's would make a difference...but intercoolers generally correct for that issue. the other differences obviously would be how fast it can put 10 lbs. of pressure in the manifold. 16g would do it alot faster, cus it spools faster, but it wouldn't be able to keep the higher amounts of boost in the manifold at high rpms, since it doesn't flow as much air. the way i see it, there is lbs. of force behind the intake valves waiting to get in there right before they open. 10 lbs. is 10 lbs.

jason
95 gs turbo