[mrnickleye]

It might work, But it might be like being the guinne pig in a new drug experiment.

I'd only try it if I had failed the smog test, and needed a new cat to pass.

Also....
It seems to me that a lot of folks on this forum tend to say "ouch" if they have to spend the $60-$150 for a new cat.

That tells me they don't have (or don't desire) to spend any more than they have too on repairs.

I've learned that to support a car, you must plan on spending at least $100 month. This should be placed in a savings account to build up a reserve for the larger ticket items, like tires, and repairs you can't do yourself.