You're Vehicle Info: Module Cost: Average Miles Per Week Average MPG Current Diesel PPG FUEL PLUS MONEY SAVINGS # of weeks to return the cost of your Module:   Monthly fuel savings with your new Module:  $ Yearly fuel savings with your new Module:  $ Three (3) Year Fuel Savings:  $ Just plain great!!!!! From Jim Komarek(Bavaria, Kansas) "I was getting about 16.0 mpg in town with my 06 3500 stock, now i'm getting 19.0 in town and 21 on the highway. Great product!!!!!!!!! " NOTHING BUT SMOKE Kevin Deimler(Shermans Dale, PA) "AWSOME!!!! I added the bully dog to my new 05 DODGE 3500 DUALLY AND MY FUEL ECONOMY WENT FROM 13-15 TO 18-20 AND POWER OUT THE YING-YANG. ... " Power? No Problem - Juan Hernandez(Laredo, TX) "I have a Dodge 06' Mega Cab 5.9l , i tested the fuel mileage bone stock, 17.2mpg on a good straight stretch, however, I purchased the bully dog triple downloader, downloaded the "crazy larry" in stock mode, on hilly road i got about 14.3 mpg, switched to tow 14.8mpg, switched to performance about 15.1, and finally to "Crazy Larry" 21.9mpg, all this MPG and power to go with it , I strongly recommend this product. "