Also with the new bootloader software if you have this and try to use it after they flash your truck the truck will be disabled. Right now the Edge since it intercepts the signals and then sends it's own without mucking with the ECM is the only add on that will work for now with this Boatloader which is installed in the later 09 models and beyond.

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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