I tow an 18.5 ft Lund Tyee with my 3.6. I’ve estimated my weight at 2700 lbs as well. No problems at all, I think it pulls it easier then my 5.2L Dodge Dakota and it should, they have almost the same horsepower and torque ratings. I’ve pulled it through the Texas hill country at 105 degrees, and it held 60 on the upgrades with no problem at all. It downshifted to fourth and it wasn’t even close to floored. The Texas hill country, however, is not the Rockies’. I would think it would really work on some of the long steep grades to hold speed but so would almost any vehicle. Put a transmission cooler on and make sure you’ve got trailer brakes. Our boats weigh almost as much as the Subaru. I actually think the weight, structural integrity and cooling capacity of the Outback are the limiting factors for the 3.6’s towing capacity.