Get all your exhaust connector needs met in one stop with PPEs Interlocking V-Band Exhaust Flange sets. These flanges are a three piece design consisting of two mild steel flanges, male and female (engine side and exhaust side), held together with a heavy-duty 304 grade stainless steel clamp. PPEs Interlocking V-Band Flanges make it easy for those who are building their own Street/Hot-Rod/Race exhaust systems while eliminating leaks at connections, which are dangerous and rob horsepower, at the same time. Theyre also perfect for those occasional open header days, such as race or pulling events, as once installed, separation of the Interlocking V-Band Flanges is quick and easy. Theyre available in three popular sizes, and can be ordered in sets or individually to meet your specific fabrication needs. Designed to hold roughly 1000 pounds of pressure with zero leaks, youll never pop these flanges. Some welding is required for installation.