i have a 2001 lb7 with exaust and cold air intake lookin for tuner whant to know opinions on which 1 and how much and where to go i hear alot on efi but which 1 to get also whanted to know opinion on edge evolution cts i like the idea of the screen with all the goodies on it but looking for input thanks for the help

 

Efi is the best one to get I had it on two duramaxs

 

You could fetus efilive with the dsp5 has 5 different tunes and if you get the edge insight cts you can run your tunes through it! Makes it a touch screen change on the fly setup. As for efilive I personaly would recomend getting tunes from someone not trying to do it yourself, there are many tuners out there to choose from just a personal preferance on that I did a lot of research and know who im going with for it

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I had a quad s2 for awhile, and it was ok, but I just got rid of that and got efi, best thing I've done to the truck! I would def go with the efi and the dsp5. Best thing for the dmax's, I know duramaxtuner.com has pre-tuner ecm's you can buy, so that might be an option.