It generally destroys it. Buy a new one - less than $5 from your friendly DMC place. You can't really cut one yourself, kind of hard to buy metallized asbestos sheet. Plain cork or paper gasket material would not last the trip around the block. --- In dmcnews@xxxxxxxxxxx, "Walter" <Whalt@xxxx> wrote: > Once a catalytic converter is removed from a car, does this destroy the > gasket or is the gasket reuseable? > Walt Tampa, FL