The 3.5L EcoBoost engine has been around long enough that there are several performance upgrades owners can choose from. Here are six of the best to consider.

The all-new 6.7-liter Cummins High-Output Turbo Diesel is rated at 430 horsepower and 1,075 lb.-ft. of torque. A redesigned block and head, robust heavy-duty pistons, new performance intake manifold, ...