This Muffler is designed to increase the horsepower and torque throughout the entire power curve and give you a noticeable power increase that is very usable and beneficial, no matter your riding style or ability.
Features include space age internal packing for maximum packing life and a high-flow modular end cap. Internal core shape uses high-flow technology. Enhanced sonic evacuation provides for higher flow and increased power.
Muffler includes removable spark arrestor. 97.5dbA sound level.
This accessory is restricted to closed-course use.
- 2014 – 2017 YZ450F
- 2016 YZ450FX
- 2016 – 2017 WR450F