Designed as part of the V-Band Assembly of the Gen4 External Wastegate Range, these V-Bands feature Cast Construction, fine thread bolt & nut.V-Band (Outlet) Suit Turbosmart Power-Gate60 (60mm) External Wastegates.Suits Gen4 PowerGate60 Outlet. Does Not Suit Gen4 PowerGate60 Inlet. Does Not Suit GenV External Wastegates. Does Not Suit StraightGate50.