Went based on reviews
Reviewed By Ray R (CORDOVA, AK) Reviewed for a 2011 Chevy Tahoe —1/14/2015 9:44 PM
So far so good 1 week no problems love the product. Saw a lot of complaints on fuel mileage. Didn't see much decrease but that was not of concern when purchasing. Great product if u do not like the going back and forth between 4 and 8 this is for u.
Reviewed By Marty B (Alexandria, KY) Reviewed for a 2008 Chevy Tahoe —3/12/2013 3:08 PM
Igained 3 mpg and hp in stage extrem (thats where i run it) pulled trailor in tow stage , held rpm and mph didnt help with mpg.(hauling atv's, lawn tractor's)checked out trans stage: uneventful for me.
Edge CS for 2009 Tahoe
Reviewed By Charles N (Windsor, CO) Reviewed for a 2009 Chevy Tahoe —9/1/2010 11:24 AM
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.