I have heard of some people with good reviews of the Quadzilla products. I am looking for something that can give me good mileage on a setting and then give me extreme power on other settings. I currently have a edge attitude with juice. I am satisfied with the power, but I haven't seen any mileage increase, even driving normally. I am not looking for miracles of 30 mpg, but an increase would be nice with current diesel prices. I have read about the XZT and the X2, but can't find anything about increases in mileage with the X2. I want a shift on the fly module so when I need the power I can get it on demand. I also want to be able to use it when towing. Any first hand experience would be nice.

 

Quad X2 is perfect for what you want. I have used the Race/MMM tune w/ great success. I gained a solid 1-1.5 mpg, not a huge gain, but it works on my truck. Then when you want the power, believe me, w/levels 4 and 5 it's there!

 

im also running the citymilage with smoke tune,on setting 1 she runs very smooth and seems to get better milage,on setting 5 the rail pres gets pretty high but the power is there and it doesnt get as hot as the pred tuner i also run somtimes.also i use a scangauge to monitor engine parameters,it will definatly make you change your driving habits,i try to keep the engine load below 12 and its a good tool to see what mods are making the truck run easier

 

I've have run my X2 std w/mileage tune on my truck. I getting just as good mileage on mileage tune as I'm getting on the 65hp a gain of 1.2-2mpgs depending on how I drive. But fuel prices I might it lillte better run to double check it out. I'm running 75% hwy 25% city driving/