A Great Fix for Ford Calibration Issues
I have a 2015 Ford F350 that I changed the tire size on, went to a 295/75R20. The change actually affected my navigation to the point of being worthless. I'm told that Ford engineers designed the GPS to use dead-reckoning in conjunction with satellite, a change in tire size throws your location for a loop. This system not only put my MPH dead on, it also fixed my Nav. issues. I would also recommend leaving the data cable attached for easy future adjustments. Great product!
I recently purchased this for my Ford 350 to use while pulling my car hauler down the east coast. Increased the overall performance drastically while also increasing MPG. I had purchased the original Hypertech years ago for my 3500 Dodge and was never let down resulting in this purchase. I also bought one for my son's Chevy 2500 Silverado and he LOVES it also. Only problem is he will be replacing his rear tires alittle more often now...