Yup actually tried both pipes
It definitely would have to be cut & turned. Directly behind the front tire, basically inline with the bike so you could roll it up to get the outlet to line up. Nobodys nutted up & actually tried it on a steel frame yet , though this topic has been covered a few times. Having used both the cr500 fmf & the cr500 cpi it is no contest though. You could use the fmf to detune it & choke it up some if you are riding in really tight stuff, but I know your not Enginerd, you could drop your bike with a zipty tank on it there in Morgan & do alot of guys the favor of having CPI make up a pipe for that combo.
I actually got my pipe before they were making both, so honestly I dont know which one it sposed to be + 9hp over any competitor was how it was listed