E-Tech Exhaust Pipe Connector Joiner 66mm - 69.5mm (L=125mm)E Tech EC016 Exhaust Pipe Connector Joiner 66mm to 69. 5mm 125mm Heavy Duty Clamp Heavy duty construction for strength and durability Adjustable Exhaust Coupler Sleeve Designed to join same diameter pipes and tubes together without the need of welding Manufactured to be inserted between equal diameter exhaust sections to provide a secure and strong join Ideal for joining new exhaust sections or repairing damaged holed sections Heavy duty adjustable