thats how I learned. I had a set of pipes that were extra to play with first. Those pipes actually ended up on my bike then I did Wendys and a few others too. If you take your time and give it some thought it is not hard. Just be gental until you get it down so as not to make any marks on the outside. This guy , although not a mechanic , was of some help to me to see what was in there. (stock pipes anyway)
http://members.optusnet.com.au/%7Ematt_l/