The exhausts systems are compatible with the 2010-2011 YZ250F and YZ450F, and features include:
Stainless steel and aluminium combination with a cone-style end cap, which is completely rebuildable;
A PHD Chamber (also known as a Resonance Chamber) in the middle section of the header pipe. This helps to reduce noise levels and it also improves bottom end power;
Meets the MA race 94DB noise regulations; and
Is for closed-course competition only.
Price is $724.60 for the YZ450F exhaust, and $699 for the YZ250F. Fore more information, email spares@yamaha-motor.com.au or visit www.yamaha-motor.com.au/yshop.