What did you end up doing with the clogged cats, cut them out? I've been watching youtube vids of guys saying there are methods of cleaning them like soaking in a bucket of soapy water, spraying brake or carb cleaner down it, and soaking in sodium hydroxide. Sometimes they say it works, but if the catalyst metals have worn off, all the cleaning in the world won't do any good.
I'd rather just get rid of them if there's no inspection. If my engine isn't running properly (and with my luck and mechanic skills that's a high possibility), having no cats is one less thing to worry about. Plus some guys claim it runs more efficiently without them, but I think that's in cases of older style cats and/or high mileage cats that don't flow like new. I think on stock engines nowdays the cats don't restrict flow like they used to.
I'd rather just get rid of them if there's no inspection. If my engine isn't running properly (and with my luck and mechanic skills that's a high possibility), having no cats is one less thing to worry about. Plus some guys claim it runs more efficiently without them, but I think that's in cases of older style cats and/or high mileage cats that don't flow like new. I think on stock engines nowdays the cats don't restrict flow like they used to.
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