DF5.4
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The thing about tuners is you need to have realistic expectations for what they can do. I can feel the firmer shifts and I can measure improvements in acceleration. When I use the heavy tow program I can feel the improved shifting and the truck can hold a higher gear when i get to a hill when I tow my 30' TT. It's not going to be the same as adding a supercharger. I don't expect it to.
I have the Superchips Cortex. That is the one I know. Custom tunes will make more power in a given application if that's what you want. Superchips' canned tunes are still "this will work for everyone" tunes. As an example I have 93 octane gas in my area. Their tune for premium gas is for 91 octane. They don't make custom tunes. Is it worth it to get a custom tune to maximize power for a truck on the street? I don't know. Does anyone know the difference in the maximum power you can make tuning to take advantage of going up 2 octane points? Then what happens if I travel to an area that only has 91 octane? Also their tunes are 50 state street legal.
I have the Superchips Cortex. That is the one I know. Custom tunes will make more power in a given application if that's what you want. Superchips' canned tunes are still "this will work for everyone" tunes. As an example I have 93 octane gas in my area. Their tune for premium gas is for 91 octane. They don't make custom tunes. Is it worth it to get a custom tune to maximize power for a truck on the street? I don't know. Does anyone know the difference in the maximum power you can make tuning to take advantage of going up 2 octane points? Then what happens if I travel to an area that only has 91 octane? Also their tunes are 50 state street legal.