Mileage is about the same as yours, i.e., cruising at highway speeds. Less when I get ants in my pants and my throttle arm twitches. Photo included has been posted before, shown to save any looking, with just over 2k miles. The other plug was identical. This is with my current set-up as noted above, plus a SJBMW power filter and full induct with expanded snorkel, Lennie's Rocket Sprockets, SJ exhaust accelerators and cross-over pipe baffle removed. There's no sign of richness saw on either plug.
