Akrapovic Yamaha R6 Race Systems feature conical collectors and a conical link pipes made of stainless steel and attached to each other with sleeve joints secured with silicon-shielded springs. AKRAPOVIC YAMAHA R6 RACE SYSTEMAkrapovic R6 Race System, Featuring Ti or Carbon sleeve both with carbon-fiber outlet cap. power increase with the Akrapovic system is substantial, and can be seen from 7000 rpm right to the top of the range. At 14500 rpm we measured 119.5 HP, with max. increased power of 7.3 HP at 9200 rpm. Use pull down menu to select your new Yamaha R6 Akrapovic Race System in carbon or ti setup.