Reviewed By Daniel C (Madison, MS) Reviewed for a 2006 Chevy Tahoe —9/2/2014 7:12 AM
Recieved the tuner and installed the 87octane quick tune. Everything seemed fine in the first 5 mins, but quickly there after the check engine light came on. Checked the code and it was showing a knock sensor. Likely due to the change in fuel/air mixture. I returned the truck back to the saved stock tune and deleted the code. Now everytime I drive the truck, the check engine light comes on after about 5 mins of driving. Not worth the headache. Wished now I would have just left it alone.
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.
2004 Chevy Suburban 2500 4X4 6.0 Liter
Reviewed By Timothy S (San Jose, CA) Reviewed for a 2011 Chevy Tahoe —6/13/2012 2:16 AM
Used Cortex Programmer with, K&N intake, and Magniflo muffler. Around town MPG improved 1-1.5 and Highway about the same. More power, shifts are smooth and engine sound is awesome. Programmer was easy to install and I am not a car buff. Once you program the computer you un plug it and are good to go.