Reviewed By Barry W (Benton, KY) Reviewed for a 2015 GMC Yukon —7/21/2019 3:13 PM
I researched multiple devices. I thought damn this one's expensive, but the reviews were much better than the others, so I thought just don't let the wife know. I installed it and OMG!! My 2015 Yukon Denali is a beast now. You can program it different times for different uses. Towing for higher torque, fuel economy if you want to save money on gas; but mine is in the sport mode all the time and I absolutely LOVVVVE it. Was going to get a supercharger for $4k but don't need it now.