GT35 GTX3582 Billet Ball Bearing Turbo .82 A/R T4 Vband Housing T51R Mod 6262 GTFeatures the T51R Mod, which produces a distinct attention grabbing jet like sound. Some call it a whistle or a whine, irregardless the unique sound is sure to allure many car enthusiasts across nearly all platforms and or makes. Journal Bearing Billet Wheel Turbo with specs as follows: Billet Compressor wheel: 66mm 82mm Compressor Housing: 0. 7 A R Anti Surge, 4" Inlet, 2. 5" Outlet Turbine wheel: 68mm 62. 3mm Turbine housing: T4 Inlet, V Band