Ford 6.7L 1050 ft lbs TQ at 1,600 rpm, 475 HP at 2,800 rpm

I started with a 1999 SD, 2000 SD,2006 SD, and current 2015 SD, each has been an improvement over the prior and the 2015 by far the quietest and pulls the best. Loved my 7.3's but they just don't compare to the 6.7.