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 what your riding style or ability is. Features include space age internal packing for maximum packing life. High-flow modular end cap. Internal core shape uses high-flow technology. Enhanced sonic evacuation provides for higher flow and increased power. Includes removable spark arrestor.
Designed to work with stock OEM header
Note: For closed course competition use only.
Fits:
- 2009 – 2013 YZ250F
- 2009 WR250F
- 2011 – 2013 WR250F
- 2009 YZ450F