Safewiz
Senior Member
I have a set of champion 3X spark plugs that were in a box when I got the car. When I look at them they seem to have a set of regular spark plug compression rings on them that are totally flat. In the same box there was a pack of thick rings listed as spark plug compression rings. All the pictures from the model A supply places show these plugs with the thick rings and not the thin flat rings. Before I try these, should I remove the thin flat rings and just use the thick ones. I really like the looks of the 3X plugs, and all the post I have read say they are the best.