[Racer Robbie]

Originally Posted by dave6666

There have been enough concerns with wrapped cats, whether with the Roe product or by others, that Roe has discontinued selling that product.

Jon at Parts Rack states that the cats should not be directly insulated, or wrapped.

The concern with the Roe products is that it can absorb contaminants that will make the ceramic based product flammable.

For whatever it is worth I have been running Rt Ceramic Cats for over 20,000 miles and they are wrapped along with the complete exhaust system. We have had zero failures of the cats and just recently passed the Connecticut Emissions Test. I installed a set of stainless vents that i bought from a marine supply store behind the front wheel that lets clean cool air flow thru the exhaust side sills.
JMHO