Hi I have a 2013 CRZ with 235K. This car has been grea,t up until now I have 0 issues Getting 43 MPG. I had the CEL come on the other day took it to the Honda dealer. They told me it needs a new catalytic converter at a cost of $3200. I love the car but with that many miles on it I'd hate to do it then have something else happen. Or if it really the cat and not another issue, next step is to take it across the street to an independent mechanic, I have not pulled any codes from it. I see there are aftermarket cats out there at a reasonable cost. Anyone have any experience with these?