Yoshimura slip-on RS-4J for Yamaha WR250X/R in now on sale!

The design of RS-4J is based on US Yoshimura RS-4 series which earns high reputation among motocross racing scene like AMA Supercross.
RS-4J combines its design and technology of Yoshimura Japan.

This exhaust has an elaborate design in details. Laser marking RS-4J logo is engraved on the surface, and Yoshimura logo is also attached opposite side of silencer.
Regarding to the performance, it delivers plenty of torque around middle rpm range, and enhances output all rpm range.

Feel the smooth throttle work and extra torque!

→ Read the full article (*Japanese)

Original Source[ YOSHIMURA JAPAN FACEBOOK ]

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