I don't know what you towing but I have a Toyota Tundra that has essentially the same motor as the Seq. I tow my 4,000 boat/trailer reguarly. It has more than enough power. The motor is a bit smaller than the domestics so low rpm torque is a bit less. However, the midrange performance is outstanding. I can outpull the 5.3 and 5.4 liter domestic trucks pulling similar weights over grades. All this and my gas milage is about 18 at 80mph and about 12 pulling the boat.
If you going to pull really heavy loads (6-8,000 pounds) get a Ford or Chevy. The bigger motor will help