I was running Imogene Pass between Telluride and Ouray, CO. I ran across these guys with Michigan plates, a laptop mounted to the dash, and a non standard exhaust pipe. At the top of the pass we were both stopped and I asked them if they worked for Jeep, and one said said "yes". I asked if there was anything special under the hood. His reply was "just a boring regular 3.6 BSG". So Jeep is testing the 3.6 BSG in a Rubicon at high altitude. I know it is probably just a mule, but thought I'd share.