Somewhere in it's life my 03 had it's exhaust hit by a curb closing the gap between the 02 sensors and engine blocks and axles. As a result it doesn't take much of a bump or tap to break the sensors. Any ideas short of buying a new header etc.?
Most aftermarket cats arent CARB legal. The CFM HFC is 49 state legal, it looks like CFM is coming out with a 50 state HFC sometime soon.