I also have the Diablo Intune and love it. I'm using the 87 tune with AFM off and firm shifts for the TCM. Made a noticeable different with my intake. I was running the 93 tune last summer while towing my trailer and will probably go back to that this summer. Felt like the truck ran better...
I have a 2008 Suburban that I tow a 30' TT that weights about 5200lbs loaded. I put new yokohama tires on early last year that were rated for 2600lbs at 50psi. After one camping season I'm now looking for a good E rated tire. With having the extra weight of the Suburban the sidewalls on the...
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