I came across this on internet, good info on laws in EU with exhausts, I have not seen on road yet but sounds nice
GPR PREMIUM LINE
This Premium line exhaust is equipped with the new dbkiller (mech), this system provides more power and a better sound than the old insert system. This is now the standard on all Euro 4 models, but also the older versions are equipped with this as this is a major improvement!
The grille is mounted with DEKRA screws (anti-tampering screws). This is an accepted mounting system of the db-killer for countries such as Germany, Switzerland, France ... where regulations are becoming increasingly strict on "removable db killers". A special tool is needed to remove these screws, once removed you can replace them with ordinary screws. We can do this for you on request. Be aware that is is illegale to remove this on EURO4 models for road use.
GPR PREMIUM LINE
This Premium line exhaust is equipped with the new dbkiller (mech), this system provides more power and a better sound than the old insert system. This is now the standard on all Euro 4 models, but also the older versions are equipped with this as this is a major improvement!
The grille is mounted with DEKRA screws (anti-tampering screws). This is an accepted mounting system of the db-killer for countries such as Germany, Switzerland, France ... where regulations are becoming increasingly strict on "removable db killers". A special tool is needed to remove these screws, once removed you can replace them with ordinary screws. We can do this for you on request. Be aware that is is illegale to remove this on EURO4 models for road use.
