Wikipedia
Akrapovič
Akrapovič is a Slovenian manufacturer of exhaust systems primarily for motorcycles, but more recently also for automobiles. A global exhaust supplier in motorcycle sport, Akrapovič exhausts are used on motorcycles in Moto GP, superbike, supersport, supermoto, motocross, enduro and rally raid. , Akrapovič systems have been used in a total of 38 world championships all across motorsport.