Reviewed By Terry K (YUCAIPA, CA) Reviewed for a 2009 Dodge Ram —1/25/2016 9:15 AM
I bought this to improve mileage. It did improve mileage about 5 mpg (average about 24 mpg), but only about 1-2 when towing (average 14.5 mpg). The mileage coach is helpful as are the many gauges. Although I have never used the performance settings, my throttle response and acceleration is greatly improved over stock.