CUPPINI muffler terminal perpendicular, perpendicular, for Vespa all models l=272 mm, Ø 25 mm, internal Ø 21mm, chrome Exhaust decoration simply bolted to the original exhaust outlet pipe. This does not result in an increase in power, but offers a more elegant look to an otherwise unspectacular item. SIP Selbach user community on art. no. 24140000: Looks good and improves the look of an otherwise boring element.