I'm real close to doing the delets and smarty jr. set up. I have a 2008 2500 quad cab and tow a 32 ft. Montana 5er and sometimes ATV's behind the 5er. Before I do this, is there someone out there that has a similar set up with the delets and smarty and did it improve your milage while towing? I'm looking at $1200.00 to do the delets from the turbo back and install the smarty. I want to make sure it's going to be worth the money and *** chewing I'll get when the little lady finds out the savings has a dent in it. Thanks in advance for any thoughts or suggestions.

 

NEVER MIND.......i DID THE DELETS AND SMARTY ANYWAY.

 

That was a BOLD move, no holes in the back of your pants, I hope....

 

A Big One!

 

My set-up is different then yours, but I do pull a 5er. I have pulled this in both configurations with the emissions installed and deleted. I have kept track of all of my fuel mileage from the first day that I have own my truck.
My truck is a 2008, 2500HD Mega Cab, 6.7L, 6spd Auto, 3:73 Gears,4X4 pulling a 11K 5er GVW, my combine weight is 18,200LBS.

The mileage before I did the deletes was between 9.35 MPG to 10.71 MPG, depending on hills and if the wind was a trailing wind.

My mileage after the deletes is between 11.27 MPG to 13.02 MPG, again depending on the road conditions and which direction the wind is from.

My wife hates to see the fuel bills when they come in from our two to three week camping trips on vacation.
Jim

 

Excellent and bold move!!! I hummed and hawed for about 8 months before I did the deletes. Much consideration was taken into account, but now the 6.7 just runs so much better. I have not towed with the deletes yet, but running around town empty gave me about 3 mpg better. And now it sounds and smells like a diesel. In a month or so I'll have some towing numbers.