Akrapovic Yamaha YZ450F 23-25 Evolution Line Exhaust System (Titanium) - S-Y4MET16-FDHLTAClose cooperation between Akrapovics Racing R&D and R&D departments has resulted in an exhaust almost identical to the specifications for the one the Monster Energy Yamaha Factory MXGP Team will be racing with in the 2023 Motocross World Championship season. The tailor made design fits within the limited space on the motorcycle and is the largest that the space will permit. This allows increased sound silencing to mitigate the impact on the natural