Edge CS for 2009 Tahoe
I ran this on setting 2 of 4 because I could use 88 octane. The throttle response and tranny shift was better but it kept shifting down constantly with minimal amount of throttle. I had to put 91 octane in to run setting 3(Tow Mode)but I love how it runs and it isn't constantly shifting down anymore. I have a fast Duramax so this stock rig was painful to get use to being it was so slow but the edge chip changed all that and I now love this Tahoe. I gained a second from 55 mph to 75 mph, going from 6 seconds to 5 seconds.
This thing is crazy easy.
Well it took me 5 min to install this. I like how you can adjust what you want to see on the display. Not sure how much it saves in gas because I've not had it long. But you can tell it does something to the engine. The engine responds better when you hit the gas. My tahoe had a lag when you hit the gas. But now its gone. This maybe due to the cold air intake and flow masters I put on at the same time(All from auto anyting). All I know is it went from mild to wild in one weekend.