Programmer

For the most hp or even the best mpg custom tuning with an EFI live module is so far superior to of all the over the counter options. All of the above will help some, but isnt getting the best of anything. Call up anarchy diesel or Corry Willis at ppei and tell them what you have and what you want. The tunes have cooler egts and better mpg on the tow and eco settings, and way, way more hp on the race settings.