Reviewed By Ron B (Huxley, IA) Reviewed for a 2017 Chevy Silverado —3/28/2017 11:44 AM
I've had the device for a couple weeks now. It gave only one check engine light, just unplugged and plugged back in. (with key off). It works as described. It has lowered my gas mileage a bit, but well worth it. My Silverado 6.2 WAS very obnoxious in the 4 cylinder mode, but now sounds great all the time. Love it!