Duramax 2007 6.6 LMM

[southpusher]

I have a new GMC Sierra HD 3500 with the 6.6 LMM engine.
I am looking for advice on which is the best power performance device to buy for this unit (Bully Dog, Edge, Advance, Super Chip, etc.) and the advantages of the unit.
Thanks for the help!

[Heiseroil]

IIRC, Bully dog is the one to go with for the LMM or earlier... I wouldn't touch superchips with a 10 foot pole based on what I have seen...

Scott

[Ken's PS]

We have had a lot of positive feedback with the Edge Juice and Attitude. If you don't already have gauges, this is really a nice package deal when you consider all the extra bells and whistles you get, egt alarms, defueling at shit points, code reader etc. If you already have gauges, then the Juice by itself is not bad or the Superchip Flashpaq works well to. It usually gets knocked because it is not the highest hp tuner on the market, but not everyone needs or is looking for that either.

[horsehaulin]

Just for future reference, EFI Live is the best tuner that you can buy for anything GM. PPE is right there with it. If you own a GM, EFI Live and PPE are the only two to go with. Anything else is a waste of time and money.

Tony