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Old 09-05-2013, 02:51 PM
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NWRQC NWRQC is offline
Dodge Ram Forum Senior Member
Join Date: Dec 2011
Location: W.A
Posts: 730
Gender: Male
Vehicle: 2007 RAM
Engine: 2007-2011 409ci (6.7L) Cummins Turbo Diesel 350hp 650lb/ft
Rep Power: 5
NWRQC will become famous soon enough

Ryan re-did all the tuning for H&S not too long ago, they will be the latest updates on their site. It should be 6.8.47, make sure you update your firmware on the tuner then load the new tune. There are some new PIDS and setting changes which are all nice.
My computer is off anywhere from 1mpg to 8mpg depending on my driving. Since the tuner modifies some of the signals that the computer uses it's not going to be very accurate. I would only go off hand calculated for comparison purposes.
As long as the EGR is unplugged then it'll be fine. Going from 4" - 5" exhaust won't affect power or fuel economy, it might just be a coincidence.
I get a consistant 14- 4.8mpg highway or city driving.

Try cleaning your Map sensor, they tend to contribute to poor fuel economy when they are gunked up.
2007 6.7 | EFI-Live | Draconian tuned TCM | T4 S366 | ARP | AFE | Fox | Carli
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