mbrp can

Amazing MBRP Race can on my 2000 Polaris RMK 700 http://www.youtube.com/watch?v=FQAVDiE4IcY&feature=plcp

I just got an MBRP Race Can for my 2000 RMK 700. I've heard that you need to change things and maybe get mods to fit the MBRP can onto the stock Pipe. I just looked at the spring "latches" and they all seem to match up for the most part. If anyones ever done this, what did you have to do to put...