The "GT3076R-WG" packs the 500HP capable, quick spooling 52 trim 76mm compressor found in the popular GT3037 with the high flowing 90 trim turbine wheel found in the bigger GT3071R-WG, making it the highest flowing turbo available in the internal wastegated configuration. Ideal higher power upgrade for GT28RS/GT2871R/GT3071R-WG setups looking for a lot more power. Comes with T25 style inlet flange. Turbine -Wheel: 56.5mm w/ 90 trim -Housing: .64 or .86 a/r -Internally Wastegated (No Actuator) -Maps: Not Available Compressor -Wheel: 76mm w/ 52 trim -Housing: Various a/r -Inlet: Various -Maps: Not Available