I have read on some other sites about people having good luck with the quadzilla what can anyone here tell me about it. I like the idea of being able to raise the rpm's up to 4400 this might not be a important thing on the duramax's not really for sure. I have narrowed my choices down to these two but not sure which one. I here more about the predator on this site and more about the quadzilla on another site, so anyone that has tired them both or know someone that has please give me the pros and cons on both of these.

There are 2 Predators out there. I have the Diablo Predator. I love it! The only thing I wish I could change is the ability to change the power setting 'on the go'. Especially with me living in an area where we can have 3" of snow one day and clear, sunny, 50* a day or so later! It's weird here!

If you don't mind a unit that has been used for 5 months....mine will be for sale in a week or two. I'm on the list for the Banks PDA system.

I have tried both and I am running the Predator now. When I tried the Quad it was very touchy at low RPM and did not have good MPG. They took my info and worked with it a little and released a new version. I have not had a chance to play with it yet, but I would like to. They were also great to work with.