Reviewed By Dennis S (Miami, FL) Reviewed for a 2003 Jeep Grand Cherokee —9/23/2009 6:23 AM
Amazed at the instant horsepower gain. Gas milage is better. I will order one for my wife's mustang.
Reviewed By John M (FORKED RIVER, NJ) Reviewed for a 2012 Jeep Grand Cherokee —8/20/2014 2:31 AM
I have a 2008 jeep wrangler, I used this to help with gas milage and better pick up. so far looks like I have added about 1 to 1.5 miles per gallon and when you step on the pas the jeep have a lot better response. Just have to follow what the institutions say, I had no problem installing tunes.
Reviewed By Bruce S (MARION, WI) Reviewed for a 2005 Jeep Grand Cherokee —4/17/2014 6:39 AM
Installed the program on my Jeep, you can program thermostat, tire size and regular or premium use fuel settings. Seems a little snappier, off the line but as far as huge performance gains, I'm not seeing it . Gas mileage is up approx. 1 to 1.5 mpg so over time it will pay for itself. i originally bought the unit to erase DTC codes after the N23 recall. It erases the DTCs and is very easy to use. Had bought a Superchips programmer but they do not support the 2005 Jeep 4.7 liter motor, Hypertune