Most Popular EvoHT2 for Ford F-350 Super Duty

The service of e-trailer has been great, and once programmed the device seems to be good (I am yet to put many miles on the truck to see if it does as advertised). The problem with the device is the upgrade software. It took me more than 8 hours to finally get the device upgraded. The design of the software leaves a lot to be desired and the device kept timing out during the upgrade process that rendered the device useless and required a complete restart of the upgrade process. If you buy the device and decide to upgrade it as suggested then you need to have high speed internet, turn off all virus and firewall protection, and be patient because the software does not respond quickly and sucks up all of the computer resources so don't do anything else during the upgrade process. This is no fault with etrailer who were better than responsive in getting the order out and delivered.

If I would have known that when I wanted performance and or heavy towing I was going to have to use 91 octane, I might not have purchased the product..... I can't decide if its worth the extra cost of 91 octane gas.....