Reviewed By KEITH M (Dundee, OR) Reviewed for a 2007 Chevy C/K 3500 —6/10/2010 5:48 PM
IT GAVE ME A LOT MORE POWER AND TORQUE// ON LEVEL 3 I LOST FUEL MILEAGE. I WILL TRY LEVEL 1 TO SEE IF THERE IS A DIFFERENCE// I DO NOT DRIVE HARD
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.