2016 2.7L Ecoboost here...love the motor for towing a bass boat and its a blast to drive empty. Only issue was oil pan gasket leak fixed under warranty. no issues other than that. You are going to be blown away by the low end torque of the 2.7L compared to the 5.3L...its like going from gas to diesel....my previous truck was a 2003 1500 GMC Sierra w/ 5.3L