Max Milage Chips.
 

Hey guys,

I have a 98 24 valve cummins auto tranny, There alot of programmers and chips out there Im looking for a Max Milage chip, Ive been eye balling the Quadzilla M3 for the 150 dollar price tag and the guaruntee to not affect the drive line. They other is the Edge Max Millage but the rumor is the affect the drive line and they are in the 250 range for price. Any of you guys run them and are they worth a damn? Thank's for the input. Take care!