These are pricey from Guzzi, however they are also used on some Jap models too, so there are aftermarket suppliers. The exhaust Y piece to silencer 60x54.50x27mm.http://www.athenaparts.com/eng/products/view/13427/muffler The down pipe to Y piece 55 x 49 x 30 mm http://www.polo-motorrad.de/de/auspuffdichtung-krumm-dampfer-kawasaki-49-x-55-x-30-mm.html Best to confirm the size on your bike before ordering.
Brian UK2013-10-03 09:44:54