My Impression:Pros:Lightweight aluminum construction.
Gas rack attaches to the stock tunnel.
Kit includes: gas rack and hardware.
Fits gas cans or bags up to 11 7/16" x 8 11/16".
Cons:None.
Bottom Line:When I received the Snobunje products I had no place to carry them on the new Ski-Doo MXZ Renegade 800R, so I went searching for a rack to attach my tunnel bag to. The only company out there with a quality rear tunnel rack is made by Holz racing Products, a USA Company producing their products here in the USA.
The rack I got from HRP was intended for use to carry a gas can, but can serve double duty to also attach your tunnel bag to. As you can see in the above picture the bag fits perfect.
I was going to insert how I installed this rack, but if you follow the supplied instructions you can have your rack installed in no time. It is just a matter of finding the correct location for you (like mine in the above picture), mark and drill the 4 holes needed to secure your rack. Put you rack together with loctite on the bolts, and attach your rack to the tunnel per the directions.

This rack is a no-brainer to install, adds very little weight to your sled, and is quality built out of aluminum. You even get the HRP logo in your rack.
Some of the bags I looked at, attached to the sled tunnel with snaps, and in my opinion it looked pretty cheap to me. This HRP rack is a slick set up, and I can use it to attach a bag, gas rack, or I know, given enough time, I can find something else to attach to this rack. It is on your tunnel and is solid!
Bottom Line, if you are looking to attach a gas can or rear tunnel bag to your snowmobile, take a look at what Holz Racing Products has for your sled, before you drill holes in your tunnel that you will dred later. I went Holz and am glad I did!