I have a SCT livewire for my 2006 F-350. When I first installed it I used the preloaded street tune and got about 16mpg. I bought tuner from MKM and the gave me free custom tunes. When I uploaded the performance (Custom) tune to truck Im only getteing 13.5 mpg! Changed NOTHING but tunes.

Is it the MKM tunes?? Should I just run the preloaded tune or try to buy custom tunes elsewhere??

How much are tunes from inovative diesel?

Thanks

 

I'd try some other tunes. Don't forget mileage greatly depends on your right foot in these.

Innovative charges $65 for a standard tune, $80 for an extreme, or $165 for three tunes of your choice. They have great tunes. Also try Doug @ GoGo, or Matt @ Gearhead. All are great.