Thanks for the info. Limped the car to the shop. Left it, suggested they check the cat convertor. Turns out it was plugged up. They couldn't do the job cuz they don't do muffler work. Took it to a local muffler shop. Had the cat replaced. Car runs like new. Thanks again for the info.With those kind of IMPRESSIVE miles, could be the catalytic converter is done. Regardless, I would say you got your money's worth out of it!