Proflow Exhaust Clamp Aluminium V-Band Replacement insert 4.00in. - PFETVAR40Part Number: PFETVAR40 Our interlocking V band exhaust clamps are uniquely designed to help keep your exhaust system operating properly, and even more importantly, allow you to easily disassemble your system for servicing or to repair other areas on your vehicle. They feature either a quality standard or quick release design depending on how often you will be disassembling and are available in a variety of industry standard sizes.