FZS1000 Fazer 2001-2006. FZ1 & Fazer 2007-2011. YZF R1 1998-2011. YZF R6 2008-2011. You are buying a single Downpipe Header exhaust gasket. If you need more than one which most bikes have then change the quantity above to as many as you want maybe 1 or maybe 4 or even more for spares.
