I've got an Akrapovic Titanium Exhaust, complete with all fittings and the all important removable baffle that came off a Honda CBR600F-6 (although it does fit 2001 - 2007 models)
It cost over £500 new, and has only had about 1000 miles use - chopped the bike in for something else and the PX value was unaffected whether the exhaust was on the bike or off - so I took it off to sell separately!
Looking for around £200 for it - that should give me a couple of tanks of fuel for the ski (or a Go Pro Camera!!)
It is listed on eBay, but if it is of use to anyone here, give me a shout!