On 3 Performance GT45, t-4 flanged, 3.5" v-band outlet, 77mm Compressor wheel We have had great success with this turbocharger on compound Twin Turbo Diesel applications and sell it daily for this. The gas market also has taken to this turbocharger and although its pretty massive, it spools good and works well with the single turbo V-8 crowd. 700+ rwhp turbocharger As far as diesel applications go, we have seen 830 / 1520 ft.lbs of torque using this compounded with a stock charger on a Cummins application!