Sorry for your loss OP.
Dang, and I thought the MS6's were the only ones with serious design flaws. What's wrong with these people? This is the first and last Mazda I'll ever own.Another victim of precat induced engine failure. When the ceramic precats fail, they shatter and clog off the exhaust flow. If it is the rear precat, the sand like material gets sucked back into the engine through the EGR system and destroys the engine in about 20 seconds.