AKRAPOVIC Tunnel Sound | YAMAHA YZF-R6

#R6 #YZF #YZFR6 YAMAHA YZF-R6 (2019) Akrapovic Megaphone Slip on | https://amzn.to/2SKESzS My gopro was beaten by a truck... :_(　 YZF-R6 + AKRAPOVIC + Tunnel = Perfect exhaust sound!! :) [maximum power] ・STOCK 　 → 111.7 HP / 10870 rpm ・AKRAPOVIC → 112.9 HP / 14560 rpm [noise] ・STOCK 　 → 98 db / 7250 rpm ・AKRAPOVIC → 104 db /7250 rpm [weight] ・STOCK 　 → 2 kg ・AKRAPOVIC → 0.4 kg twitter :   / katsuoracing