Does what it says
Reviewed By Taylor M (MESA, AZ) Reviewed for a 2014 GMC Sierra —1/26/2015 9:06 PM
2014 GMC Sierra 1500. Fairly easy installation. Manual days you need to remove several fuses, but this is not necessary. Just make sure headlights are off, radio is off, and nothing is plugged into DC outlets. Did what it said!
Very easy to use so far.
Reviewed By Michael H (Las Vegas, NV) Reviewed for a 2010 Dodge Ram —1/26/2015 9:37 AM
Great little device to quickly maximize your engine's performance. I have not gotten to the point of uploading any custom tunes, but I do like the ability to make minor corrections to the PCM for variables such as tire size and having a diagnostic reader available as well. As for the performance increase, IMHO it is an accumulative difference. Meaning that it seems much more noticeable with other bolt-on mods (CAI, headers, etc)