Tuners n milage ???

richc22a · #1 (**permalink**) 04-17-2011, 04:33 PM

I know to get more hp/tq you will burn more fuel. In the older trucks you would get the option of 'economy' along with hotter tunes. Any of the 6.7 tunes offer any mileage increases?

I believe that taking off the emissions crap would be a benefit....but with the crap on...any gains???

matty21 · #2 (**permalink**) 04-18-2011, 12:03 AM

minimal gains unless you free up the exhaust and intake, btw my 08 got its best mileage on the highest hp tune

CLAYFX4 · #3 (**permalink**) 04-20-2011, 06:16 PM

Just wait for the Spartan tunes, I have a feeling Matt is going to have something special for us! Maybe even a way to avoid leaving a footprint in the PCM??

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