BRNZY
New member
I'm not fully acquainted with newer GM ignition systems (I come from the GM 3800/3400 world) but E3s almost always are bad or not large enough of an improvement to offset replacing already brand new plugs that came with the vehicle.
Like I said I'm new here, just trying to imbue some knowledge
The input is always appreciated! People learn things all of the time based of of others input. Its all good !!!