I have a T3 Flanged GT35R ... now, my question is can i just change the hotsides housing, from the T3 flange ... lower ar rating ... to the T4 Flanged higher ar rating, would the turbine prop, itself have to be changed or its it the characteristics of a gt35r, to have that prop, and the hotside is just the bore of the inside... sorry im a newb when it comes to turbos so a little explanation will take me along way.. anyones help is much appreciated