Mine is a bit more than this, after the October bad running. It's 55 miles to the nearest dealer, so it was plenty of hot enough and he tried as best he could. Also the tailpipe went very black after the bad running, so it will be interesting to examine the O2 sensors. I got two on the shelf anyway.
Remember that Cats don't last forever and I'm unconvinced that MMC use the highest quality. So when I eventually get inside it we'll see what's going on.
