i gotta question if i run my stock exhaust with 2.5 inch piping will that slow the spool up time of a t25 i have a b16a and i kno that motor might be to much for the turbo and it wont hold boost to redline but with the stock exhaust i was thinkin boost would kick in a lil lata because of the stock exhaust would thiz be alright or should i just go wit a t3 im gonna be runnin 10psi also just to put that out theaaa... im asking this cause i dont wanna get to smalll of a turbo but i also love instant boost... the t25 spools up a lil to quick for my motor and im gonnna just run my stock exhaust so i figured it would slow it down and boost would come in a lil lata if u dont understand what im trynna say let me kno