[Bill Reetz]

My 03 Yellowstone has had one added. I started out with the plain rubber one and the dealer put a 90 degree elbow on the exhaust to route it out the side instead of straight back. I was able to get one of the "Gulfstream" ones from a friend who no longer wanted it. All It took to mount mine was drilling 2 holes on either side of the hitch receiver at the very back of the coach. I used 2 of those chain type links that have a nut that screws them shut on each side, one through the flap the other through the hitch. 10,000+ miles without a problem (but I've never had it up to 80 to see if will take that)!!