UPS just showed up at my house with my new tunnel extention for my new ZR900 that I am buying. I got it made thru these guys at VanAmburg Enterprizes in Yakima, Wa. Totaly impressed with the fit and finish. The rails have factory cat edge grip and the tunnel is tapered to about 2 inches with an integrated aluminum bumper. Cats biggest mistake is not making a 136 in a cross country sled to compete with the Renegade and the SKS. But on the bright side I have a sled that nobody else has and its going to fly with 136 1.5in and 160 hp from my 900 ZR ( thats with my power breather and jetting). I wish I had a pic because these guys at VanAmburg did an excellent job for me.