Reviewed By GAIL A (DALLAS, TX) Reviewed for a 1998 Chevy C/K 2500 —9/23/2013 6:31 AM
I can feel a definite improvement in power and responsiveness. Firmer shift points were too harsh, so I returned to stock. Have't had time to check mpg yet.
Reviewed By Thomas G (Raymond, WA) Reviewed for a 2007 Chevy C/K 2500 —11/10/2009 5:56 AM
I purchased this device to correct my odometer after the dealer installed oversized tires on a truck I bought from them. The installation was a breeze. My 9 year old daughter could have done this. Now my speedo is right on, (confirmed by GPS) and the shift points are correct. Before I was revving to over 2400 RPM at 65MPH. Now I'm right around 1500 RPM at the same speed. My truck also feels a whole lot peppier and does not struggle when I really get on it. It really responds. I've also gained 1.5 MPG since the install and it keeps getting better. Autoanything provided a great product to help me out. The whole purchase experience was very positive.
Reviewed By Robert T (Vidor, TX) Reviewed for a 2011 Ford Expedition —8/29/2013 8:04 AM
I was very pleased with the E-CON. I installed it on my wife's 2011 Expedition. I wasn't concerned about the 40 extra horses, but bought it to improve my mileage. I checked the mileage on several trips without it and then with it. By the vehicles mileage indicator, at 70 mph on cruise, I got a 2 mph increase, from 20 to 22mpg. What surprise me was at 75, the mileage went from 18 to 21.5mpg. If you put the pencil to it, the E-CON will pay for itself within 10,000 highway miles.