Reviewed By Frankie B (WAVERLY, KS) Reviewed for a 2013 GMC Yukon —5/18/2016 11:23 AM
Fairly easy to download and install tuner. Screen large enough to easily read but small enough to not be obtrusive. Good menu services.
Reviewed By Robert L R (VALLEY, NE) Reviewed for a 2000 GMC Yukon —2/12/2016 9:15 AM
This is by far the first, best upgrade I've made to my Denali! Fairly easily installed (no thanks to GMC) and my 5.7 Vortec started right up with no codes. I experienced immediate increases in throttle response and overall power and drivability. Unbelievably, after a week or so of driving the vehicle, the power and responsiveness approved again! Puts me in mind of the old EPROM chips. I highly recommend this product to anyone looking for low dollar extra horses and low-end torque !
Reviewed By Ned R (Granbury, TX) Reviewed for a 2012 GMC Yukon —2/20/2015 9:23 AM
My 07 Avalanche is used for most of our travel as well as pulling our 21' travel trailer. I was very disappointed in the Avalanche power above 50 mph. The programmer has allowed me to pull the trailer about 10 mph faster and has increased my fuel mileage by 1 mpg. I did also add a K&N air intake. Now pulling the trailer is pretty easy. I also get improved mileage around town.