Hello,

I have a 2000 mazda millenia S with 148000 miles. The codes p0421 and p0431 have been triggered. From what I have read, the car will need new exhaust manifolds (precats) running about $1100 for the parts. The dealer trade in I got was $2000. Is it worth installing the pre-cats? Otherwise the car is in pretty good shape. It does have a little blue smoke at start-up if it sits overnight...

Just wondering if I should cut my losses or put the money into it and drive it to the ground.

Thanks for your input in advance!

-Mike