I have a 05 summit 800HO and got a 827 kit, it made a huge difference. But they told me to run stuck pipe and can, but the stock can was too quiet, so put my MBRP can back on and jetting is way different than stock, and super loud now. I would recomment this kit. I also ported as well. and...
I just got an 827 kit from RK tek, But it is still coming in the mail, I can not really help you out, But when I install I will let you know, I also had to send my brain box to get a re-curve.
We were there on jan 5 too. We drove to 49 marker and mostly in 2wd, until we got stuck around a corner and had to put on the chains. But after that we could have taken them off. It sure was deep. It was our first time in there, and we never made it to the first bowl. Just to a meadow before the...