T3/T4 turbo turbine inlet flange adapter for custom turbo installations, Features 3-inch V-band inlet with clamp to connect to your exhaust system, Cast from 304 stainless steel with compact 90-degree elbow transition, Maintains exhaust velocity for quicker turbo spool while adding installation convenience, V-band weld on flange, V-band clamp, and T3/T4 turbine flange mounting hardware included.