http://www.freestylecorp.com/ has a fender eliminator and hugger for the kat. I don't know about the quality but i'va also heard of people making their own eliminators from brackets they got at Home Depot. You can always check out http://www.katanaplanet.com/ to find out just about anything you wanna know about the kat and whats out there for it. As far as the bike goes it's not the lightest or fastest thing out there but it's still a good all around bike. The best for the money as far as i'm concerned. :nutkick
The freestylecorp.com undertail for the Honda F4i looks remarkably like the SuperSport HotbodiesRacing model. I would question the quality of these products. Before purchasing, I'd do some hefty research to try to find other customers who have experience with them. Their website is anything but professional. They even reference an @aol.com address as the main point of contact, using eBay as a primary distribution channel.