Reviewed By angus m (RUTHERFORDTON, NC) Reviewed for a 2004 Ford F-350 —9/22/2012 4:38 AM
I purchases the ford F350 with the 6.0 liter diesel without knowing how the engine was programed. I installed stage one and was surprised how the truck engine changed. My power is excellent and my mileage went up about 3 mpg. I am getting 15mpg, city driving, and 19-20 mpg on the highwasy. Yes, I am very pleased with the Hypertech.