Finally got to change the original spark plugs in my Civic. Used NGK laser Iridium from RA. Look exactly the same as the ones I pulled out. Breaking them loose wasn’t too bad, had a nice breaker bar and used only half of a shoulder to get them loose, and by hand the rest of the way out. Torqued them up to 16 ft/lb. See the picture below. I’m no expert in the plugs, but they look ok to me. Would appreciate any comments.