Originally Posted by idahotuner

difference is the 56.5mm turbine vs the 60mm turbine
so i found this center section Garrett Turbo Replacement CHRA - GT3071R [CHRA-GT3071R] - $827.00 : Himni Racing, Turbocharger, Turbo, Garrett, Turbo Kit, GReddy, Mazda RX-7, HKS, Apexi, TiAL, TurboXS, TurboSmart, Flange, Turbonetics, Exhaust, Intercooler, ACT, Intake
combine it with Special Turbine Housing T25-EWG-44 : atpturbo.comCompressor housing for GT3071R with 71mm 56 trim wheel - 4" Inlet and 2" outlet : atpturbo.com and you pay exactly the same price asa gt3071 t2 but have a better turbo, then add in a tubular maifold, and the turbo outlet that is divdied as if it was for an internal gated turbo, seems like it would keep flow better coming out of the turbine.

i bet this set up full boost by 4000 rpm, and make a around 450 on pump gas