Get all your exhaust connector needs met with just one kit. PPEs 8 Piece Interlocking V-Band Exhaust Flange Set is perfect for those individuals who are building their own custom Street/Hot Rod/Race exhaust systems. It is also perfect for those occasional open header days, such as race or pulling events, which require quickly separating the exhaust tubes. Set includes three pairs of interlocking V-Band flanges (mild steel) and two V-Band clamps (304 Stainless Steel). Some welding is required for installation.