Reviewed by Steven R (REDDING, CA) Reviewed for a 2010 Jeep Liberty — Apr 15, 2013 6:37 PM

The device was very easy to install and tech was right there when I needed them but as far as econ its just not there. I have ran several tanks of fuel through and there has been no change in my milage. I will continue to test and hopefully it will get better.

Reviewed by Gail S (DOWNERS GROVE, IL) Reviewed for a 2007 Chevy Silverado — Feb 04, 2013 8:13 AM

Super easy to use, only took me 10 minutes to program my truck. I noticed a difference in power right away. I have not noticed any difference in MPG.

Reviewed by Eric P (MORRISVILLE, VT) Reviewed for a 2010 Jeep Liberty — Jan 08, 2013 1:20 PM

Loaded the tuning, for three weeks watched gas gallons, wrote down each fill-up miles. Have lost 2 miles per gal. Under stock 15 miles per gallon. Insted i was hoping to gain 2 miles a gallon. If you want a tune not a saving gas mileage tune i guess it's a good tune.

Reviewed by Doug D (Jupiter, FL) Reviewed for a 2007 Mitsubishi Raider — Nov 26, 2012 6:03 AM

I installed the E-Con program and have notice increased acceleration and power immediately. Have not had it long enough to check for fuel economy.

Reviewed by stephen H (GOLDEN, CO) Reviewed for a 2010 Ford Explorer — Nov 13, 2012 6:54 AM

It doesn't work on my vehicle: It's not compatible with the engine (size).

Reviewed by Thomas J (Ambler, PA) — Oct 10, 2012 2:02 PM

With the 1st time buyers discount this deal was the bomb!!

Reviewed by George M (hagerstown, MD) Reviewed for a 2000 Jeep Wagoneer — Jun 28, 2012 10:31 AM

Simple plug and play

Reviewed by len z (Brick, NJ) Reviewed for a 2004 Jeep Liberty — May 23, 2012 8:13 PM

Installed the programmer on my 2004 Jeep Liberty limited. After installation i drove the Jeep on my normal commute and right away the MPG display started going up.It usually averaged 18 mpg,After a week it was averaging 21 mpg. Also besides the MPG increase it seems more powerfull under WOT acceleration.

Reviewed by Jason H (Eolia, MO) Reviewed for a 2005 GMC Yukon XL — Apr 10, 2012 7:44 PM

Was really hoping for better results and had to call customer service to install program, so it is not just plug and play :(

Reviewed by RICH C (CHANNAHON, IL) Reviewed for a 2004 Hummer H2 — Apr 03, 2012 6:15 AM

Upon plugging in my Hypertech #33500 and finding it dead I called Hypertech. The tech said to check the cars fuses and I did. There is 11DCV at the plug. He also said that if it had worked I would have had to download the correct program.I guess it would be too much for $309. to expect it ready for my vehicle. So with the shortness of the tech and no real concern for my problem I decided to return it for a full refund. Autoanything was very understanding and set up the return without any red tape. I would not hesitate to purchase there again . There sales person was understanding and helpful.