HOMOLOGATED EURO 4 NOISE LEVEL SLIP-ON EXHAUST SYSTEM , with dbkiller fixed with anti-tampering screws, it is possible remove noise restriction for racing use only with manunission of the special screws, after tampering, the system will be illegal for raod use. For a correct use of product in order to obtain a powertest similar to our dynochart it is necessary remap the engine in racing configuration (Ktm map) Without configuration motorbike will keep a good increase at low RPM losing at high.
eBay