i got a turbonetics t3/t4 today, the guy i bought it from said the exhaust housing was a 63ar.. but what came in the mail today is a .48 I dont really mind, the more i think about it, its probably a better match for my d series. The exhaust wheel is still larger than the 63/60 i used to have. How much HP can you make on a 48 housing? i think the compressor ar is a 60. I will not be satisfied with less than 350hp.

 

i want to know too, because i have the same turbo