Reviewed By alan r (Freeport, TX) Reviewed for a 2012 GMC Sierra —1/17/2016 10:06 PM
Shipping was crazy fast and it works well
Reviewed By glynn g (minden, LA) Reviewed for a 2012 GMC Sierra —12/16/2015 7:02 PM
I gave it 5 stars because it does EXACTLY as advertised. I have a 2012 GMC with the 5.3. The going in and out between 4 to 8 cylinders was bothersome not to mention the abuse on the front 4 plugs. The Range has stopped all of that. Some people complain about the very small LED lights being on but It doesn't even attract my attention. I consider it money very well spent and highly recommend.