Originally Posted by RedRam10
Well this will be a good discussion thread, there are many identical here.
From what I've read and from listening to the many owners of programers here you'll gain minimal mpg and would probably not see a $$ return on the cost of the programer for many years. Fuel savings is measured across all the improvements you add to the truck, CAI, opening up the exhaust, better driving habits and if you add the tuner modified fuel metering.
Again long term you will find gains, but don't expect major changes. Just my 2 cents worth.
Thanks for the reply.
I have seen many threads going back and forth just about the warranty issue but also notice alot of people running varying octanes.
Just wondering if one os more for performance and one is more for MPG?
Also, seems like the DSP will not leave a footprint if you set it back to factory tune prior to a dealership visit. Anyone have experience with this?