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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Premium Fiber Packing Material
PowerFlow Kits are custom-designed to each unique application for superior airflow
Small End OD31mm
Our chain guides are produced to be durable and to perfectly fit your dirt bike
YOSHIMURA RS-12 Signature Series Silenceur Premium Fiber Packing MaterialAfter over three years in development and testing the RS 12 is here! With all its details, the RS 12 takes the system to a new level: Improved performance gains, weight reduction and fit when compared to previous generation design Developed and tested in the heat of over 24 months of factory level racing Aggressive, intelligently designed, asymmetrical shaped RS 12 profile allows maximized muffler volume RS 12 systems utilize precision machined joints