Doppelmuffe 55mm Abgassystem universelle Teile Verbindungstechnik Doppelmuffen Double Sleeve 55mm Connection sleeve for exhaust pipes Stainless steel sleeve for connection of pipes This double sleeve is used for the connection of unwidened 55mm exhaust pipes. Total length: 12cm +/- 1cm Length widened end: 3cm +/- 1cm Diameter widened end: 55mm inner diameter (!) Material: stainless steel 1.4301 / V2A / SS304 Attention: The double sleeves are hand made. That means slight manufacturing tolerances may occur.