300E Bad Cat Converter ?

You got your monies worth out of that cat. You need a new one.

Do NOT just weld in a tiny POS cheapo cat. Get a real one WITH the pre-cat. Like this one:

thanks for the reply, at first I thought you meant buy a new car. :')

I live in California but the car is from the east coast, so I should NOT get the California CAT?

how about the catco for $255?

Not so fast mit der schpending off der big bucks Check the EGR valve, either clean or replace, also vacuum lines Peter

Why do I not see a cat in that exhaust?? Why does that so-called cat not look like any USA exhaust??

Open your hood and look down where the exhaust bolts to the exhaust manifold. Do you see pre-cats there?

Go here and look at the lower exhaust in the picture. That is what you should have.

You would be surprised at how little a EGR valve lowers NoX. EGR lowers combustion temps to stop the formation of NoX. NoX forms when combustion temps exceed 2500 F.

The cat controls about 95% of NoX.