It's a little belated, but I can not tell enough people how happy I am with the changes to my truck this year. We towed a 41' 5th wheel across the Sierra Nevada range, over to Coeur D'Alene Idaho, across the Continental Divide to Yellowstone and back again (4,000 miles in 20 days). The engine performed flawlessly and as advertised. It is truly a pleasure to do business with a company whose core competency is based in fact, science and experience. What a rarity to have your expectations exceeded!! At this time, I am considering the new water-methanol injection system for my 2002 Ford F-350 DW truck. I know the technology has been around for some time, but Banks credibility in the industry meant I wouldn't consider using it until you developed a "safe" and "EPA approved" version. I had Banks install everything on this truck with a specific purpose of towing. I don't need over the top horse power. Just safe, cool running power to tow my trailer. Oh, and thank you and Banks Power for continuing to be the benchmark for the entire industry. Sincerely, Brian T. Turlock, CA