Reviewed By Dale K (MONCKS CORNER, SC) Reviewed for a 2011 GMC Sierra —12/31/2017 7:28 PM
Only issue I had was shipping, their next day delivery is a slow boat from China! Takes several days to get so don't pay extra. Product was packaged very well, just plugged into obd2 and automaticly connects to onboard computer. I leave mine plugged in 24/7 with no battarie issues, shuts down when ignition is off. Gas Millage is around 17 MPG city. I purchased because I wanted the full power all the time, and do not want to ever pay the cost of several thousands to fix or replace an engine.