Turbine housing styleRR T3 SS V-BANDRR T3 SS V-BANDRR T4 SS V-BANDRR SPORTSMAN SS V-BANDAR0.82 A/R0.82 A/R0.64 A/R1.05 A/R1.28 A/R1.00 A/R1.15 A/R0.81 A/R0.96 A/RTurbine wheel size58.0 MM66.0 MM58.0 MM80.0 MM75.0 MM70.0 MM