Which tuner would you guys suggest for a 2006 4.7?

I was gonna get a superchip but after searching this forum I came across a post of a guy having issues with it on his 06?

I would like to be able to adjust shift points as well as dial in 355/70/17 tire size.

 

Superchips will allow changing the speedo. You would have to buy the transmission add on package to make your own custom shift schedule. Honestly, I had it and could never make a schedule any better than the canned tunes and shift points provided with the base unit. It's personal choice, and takes a lot of time to create a new shift schedule from scratch.