Originally Posted by motox40
My 2007 2500 four door six speed with a 5.9 is getting 20 mpg highway here in north east. I have edge j/a set on mileage, with a 4"turbo back and 5" tip. Still has stock air for now, and 265/70/12.50 tires.
If you picked up 1 mpg with your Juice, I'd be impressed.. having a quadcab, its a little lighter than my MC, so you getting 20mpg is definitely believable... I've also found if I bring my BFG TAKOs up to max psi, I can get a little more mpg... the wear on the tires I figure would negate any mpg improvements..
Your 4" exhaust, is same as stock... your 5" Tip, won't do much for mileage..
If you think about the stats, truck weight, lack of aerodynamics, and the drive-train rotating mass, the fact we aren't getting GPM, is amazing..