Have a customer in the shop that has left a 6.4 goin to a 6.7. He wants to get ******d and He's not concerned about power as much as he is with mpg. I run the h&S stock tunes on my 12 with a 4.5 lift with 37s and get around 15.5 somewhat mixed and I'm pretty happy with that. I guess what I'm asking is, what is main selling point for the h&S because I'm not really familiar with the ******* and sct set up. The main difference I see is the shift on the fly. Is there anything else? And I'm also curious about the no limit intake. I run s&b because it's easy to get filters for and is a clean look. What are the gains of running the no limit intake? Thanks