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 Mark H (Mableton, GA) Reviewed for a 2007 GMC Yukon —9/26/2016 4:30 AM
No issues. Simply plug the device into the OBD2 port. A few light flashes then it's done. According to the display the vehicle is in V8 mode all the time. Have not used it long enough to know impact on fuel or oil consumption. Oil consumption is the reason I decided to try this.
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 !