Ok I've done a search and know what they are, and what they look like...saw some attached on a 750 model like mine but when I looked at my bike I couldn't see where/how they attached them? Do they actually modify the bike to fit them? Is it easy to take it back to stock if required, and will it affect the resale value in a negative way? I definately think I need them to protect my fairing as I'm pretty new to the bike And how much? I've read about $160?