When I purchased my XC used from the dealer, it had one of these on it, but I wasn't real fond of it and went with the Victory backrest/ luggage combo instead.
The item pictured is just the multi-purpose rest, but the picture doesn't show what Kuryaykn refers to as the mounting straps, which are specific to the bike. Retail for the rest is a little more than $300 and the mount is another $150.
FWIW, I have the rest and mounting straps for the XC that I need to put up for sale.
2014 Victory Cross Country
2001 Harley Davidson Super Glide Sport FXDX
1999 Ultra Jackhammer (sold)
2008 Harley Davidson Sportster XL1200C (traded)
1971 Custom XL Hardtail Chopper/ Bobber (sold)
2001 Kawasaki Ninja ZX-7R (sold)
1994 Honda Magna VF750C (sold)