I'm thinking about getting a chip but am confused about the fuel part. Say I get the 2 stage chip and add the 87 octane program to the 3rd stage. Since I have two tanks, does this mean I can run one tank with 87 to save a little money, but still get more performance than stock and the second with 91-93 for the best perfomance when really needed? Thanks!

 

Yes... and you can switch between either setting on the fly without having to stop the vehicle, just as you can with your fuel tanks.

When switching to the premium tank, let it run for a minute or two between switch the chip over to the premium tune. That way you know the fuel reaching the engine is premium by the time the chip is switched.