Good afternoon gents, so I just recently sold my 2012 GMC Sierra with 405,000 miles on it and I end up purchasing a 2014 GMC Sierra all terrain (which from the rust on the frame, I’m assuming it’s been up north). on my 2012 I did the active fuel management the correct way with changing out the cam, oil pump, water pump, and everything else.
This time I want to try the plug and play method in the OBD port. I haven’t done much research but the research that I have done I see that plug-ins range from 40 on up to $300. Can anyone suggest a plug that I can use that is cost-efficient do I really need to spend $300 on the range? Or one that is comparable!