hmmm
taken from here:
http://bbs.scoobynet.com/scoobynet-g...l-exhaust.html
"every exhaust system and silencer .... shall not, after the date of manufacture, be altered so as to increase the noise made by the escape of exhaust gases."
This means you cannot modify the component parts yourself.
ie remove silencer material from a EU certified back box, or drill holes in it.
It does not mean that you cannot change one 'E' marked system and swap it for another 'E' marked and approved system speccified for your vehicle.