I have a Quill race can on mine, and bought a bolt on muffler to fit for Mot's, it's never failed. It doesn't have any markings on it.
I think as long as it doesn't have a stamp saying "Not For Road Use" then it should be fine, although it obviously depends on the individual tester and how strict they want to be.
I think as long as it doesn't have a stamp saying "Not For Road Use" then it should be fine, although it obviously depends on the individual tester and how strict they want to be.
More people are born because of alcohol than will ever die from it.