Exhaust question

[Honda06400ex]

I'm thinking about getting a slip-on HMF exhaust for my 06 400ex. I was wondering if anyone could notice a difference in power gains. Also I want to know if the assembly is easy. (if you want to post pics of your HMF exhaust on your 400 that would be nice also) :)

Thanks

[tri5ron]

http://www.exriders.com/vbb/showthread.php?s=&threadid=313010&highlight=show+your+babys+breather

[Honda06400ex]

thanks tri5ron