Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding
Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength
Removable spark arrestor included
FITS 2007-2014 Yamaha WR 250 F, 2007-2011 Yamaha WR 450 F, 2006-2009 Yamaha YZ 250 F, 2006-2009 Yamaha YZ 450 F
