I towed a 6,000# trailer with a 2008 Titan, so the numbers are pretty close. It had the 5.6 but only 318HP and 380 ft-lb. Plenty of motor for my trailer even going over mountain passes. Average mpg was 9 towing, not so good. I upgraded/downgraded to a 2004 diesel. Although the Titan towed fine and the truck was comfortable, I felt like the duty wasn't there and the brakes weren't up to the job. I'm sure with upgrades some of those issues have been addressed. I used a Reese SC WD hitch, never any sway.
