6.7L Cummins Forum

I went all the way!

I installed a S&B intake last week, but yesterday I did the big leap. I pulled the stock exhaust, right from the turbo back. I now have a full 5" and tuning by Smarty!
I am not seeking more power, I think it has plenty of grunt stock. So I chose the "Fuel Economy" program. Going for a 14 hour round trip this week-end. Very curious to see what mileage I get?
During a short drive this morning, I noticed a growl, deep and menacing, but not loud. The "FE tune" does appear to run any different from stock.
More next week, stayed tuned!

Thanks for the update!

__________________

2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Well, the results are in!
After completing the week-end trip, I logged a 5 mpg improvement!
I am actually a little disappointed in that I had heard of better mileage numbers.

I love the sound it makes, that 5" exhaust, while not too loud, does let the beast growl!
It is also allowing a small amount of soot to dirty my truck. I have bought a tip to extend it out further!

So what was your MPG before you gutted it?

__________________

2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

I went from 19 to 24.5, not too shabby for a 7,000 lbs truck!