Only 2 programer are developed while actual live testing. Hypertech uses modern Diesels in stock form as they are bought from the dealer.
Banks also program and do an actual test on the stock truck and like Hypertech is all States approved on stock trucks.
But Banks also make the majority of it's profit on programed modified vehicles. As they sell exhausts, tramission and engine cooling kits.
For my money I bet on the Hypertech product as they used a similar setup that I owned and the power curves suited my needs. No one else does and tested a similar truck as mine and proved to me that damage will not occur.
In 8 years of satisfaction and use are enough for me to be confident with my choice.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..