TFL was at 5Star, and did a compare of the 19 to the 20. The 19 has the 6 speed with 3.55, the 20 the new 10 speed with 3.31. The effective ratios in .82 and 1:1 were within 9%. As close a final ratio that can happen between them.

The numbers on the new 6.7 are astounding. The first pull must have been a fluke as it put down 476HP, at the wheels. The engine is rated at 475HP, at the crank. They did 3 more pulls just to be sure, and the average HP is 469HP, at the wheels.


The 7.3 will be coming up soon, can't wait to see those numbers.