Provides a significant increase in power throughout the rpm range with a maximum 4-hp gain while providing up to a 2 ft-lb increase in torque. Carbon fiber muffler shell with brushed stainless steel inlet pipe and end cap. Aluminum muffler mounts. Completely rebuildable. 2.4 pounds lighter than stock. Meets 2010 AMA® soundrequirements.

For closed-course competition only (see important note below).

Important note:
All street-legal motorcycles models are regulated by the EPA and state law. This accessory affects exhaust emissions and is for closed-course competition only. Use on public roads constitutes illegal tampering punishable by law.