last time we had a cat replaced (on a miata) the mechanic said a
newer engine, or one that runs like one, could likely pass an emissions
test without a cat. art '82 westy

Loren Busch wrote:
>  RE: No Cat
> When the engine was being replaced in my '85 it turned out the cat was
> history and had been for some time, all the internal plates broken.
> But the Vanagon had passed emmisions just a couple of months before.
>