Do the diablo predators do data logging that can be used to adjust the canned tunes? Im thinking of buying a Diablo Predator Sport Tuner U7194 for my base 2005 Manual transmission. Currently I only have a Vararam installed but I live in Arizona at a higher elevation so im not sure how much my elevation and high temperatures will effect the usefulness of a canned tune. I know a custom dyno tune would be best but I don't want to fork out $500 every time I add a Mod to my car. Also locally I can only get 91 octane so I'd like to set the car up for that if possible. I have a friend that can do street tuning but I don't want to have him make adjustments outside of the canned tune unless we can monitor or check the Air Fuel Ratios.