@the same mountainbike: The car covered 52,000 miles in only two years. It sees a LOT of highway miles. As far as the fast warm-ups, I totally agree with you there!
@George SanJose: I got the valves adjusted at the recommended interval by the dealership.
@Bing: The spark plugs were changed at 93k, the owners manual recommended 105k. In a couple of months, I plan to drop in a fresh set of Iridium plugs (NGKs or Bosch). I have a habit of pulling the plugs, looking them over for signs of fouling, mixture problems (too rich/lean), then re-seating them (using a little anti-seize) at every 30k or so. So far, everything has checked out.
Everyone, I’m gonna come clean. The aftermarket shop is Midas. Their price on the direct-fit converter alone was $426.00, + another $67.00 for the gaskets. When I contacted the Acura service department, they quoted me a price of $1,300.00 for the converter alone.