For an '06 Jeep Commander, The jury's still out.
Reviewed By Scott H (TRAPHILL, NC) Reviewed for a 2006 Jeep Commander —5/5/2015 5:03 AM
The unit appears to produce more horsepower from my Hemi. I have noticed a couple of MPG improvement. But, changing the settings can be tedious. Bullydog really needs to improve how one accesses the settings in a more straight forward manner. Overall, I'll keep the unit and with time, I'll like it better.
More power and over 10% MPG increase
Reviewed By Craig R (Mountain View, CA) —4/30/2015 4:20 PM
This was the last item installed out of an AEM cai, Pulstar Plugs, Rancho Shocks, Helix Power Tower TB spacer. Before the programmer, improvements were hardly noticeable. AFTER the install, on the basic performance mod, power is definitely up, shifts are at better points / faster, and my MPG went from 11.3 to 12.8+ average = 12% increase = HUGE. It's tempremental during install, so do it with tech support on the line. I don't like that you have un program the vehicle before any service.
2006 toyota tacoma
Reviewed By Rowdy K (San Marcos, TX) Reviewed for a 2006 Toyota Tacoma —4/20/2015 2:40 PM
Had to call bullydog to help with install but after that works great now just fine tuning to my truck. Auto anything was awesome and shipped super fast. Why i keep using them to modify my truck!