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If your truck was built from June'07 onwards(guessing the start of Job2 trucks) it should have come with a 6"+ deep air dam under the front bumper. I installed one on my Job1 and at highway steady state road speeds, I have picked up app. 1mpg improvement. Anything you can do to clean up and smooth the airflow under the truck, where all the mechanicals hanging down in the airstream cause quite a bit of drag, will help out. I have never felt the need or thought an aftermarket reprogrammer would provide any benefit over what the truck came with from the factory. When you figure in the purchase cost of the device, any fuel savings over the time frame you actually own the truck, is greatly negated. In addition, if in the event the truck has mechanical issues, even if the device has been previously removed, the manufacturer's representative will detect the signature of that product, and can deny the factory backed warranty for that component, ie. engine/transmission.
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2008 F-450 Lariat Dark Stone Metallic over Pueblo Gold 4x4(manual shift transfer case, manual hubs), High capacity tow 4:88s, Off Road, Camper packages, Sirius Sat, Upfitter switches, DVD entertainment, tailgate step, traction control, Audiophile 6-disc, PTC Supplemental heat and heated seats(warm buns), rear sensors, traction control, tailgate step. Built May 8, delivered May 24
Reese Signature Series 24k fiver hitch, I installed it myself, best hitch I have found yet
Line-X bedliner, heavy duty floor mats
2003 Sunline F281SR(weekend getaways)
SeaRay 215EC
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