http://www.dft.gov.uk/stellent/groups/d ... c#B000001F
Important points: (1) You can be done fo a loud exhaust even if it is stamped the officer only has to testify that it is louder than an equivalent motorcycle with original equipment fitted. (2) If you stamp an illegal pipe with BS numbers the officer can also prosecute you for "perverting the course of justice" - you can go to jail.
Furry - don't bother with a 5,000 word response please...
