Yoshimura R&D Spark Arrester Kit for 1.5" CRF250L & CRF300L RS-4 Mufflers
- Updated Version of SA-13-K, weldnut inside of insert makes installation/removal easier
- Replacement USFS Approved Spark Arrestor for RS-4 Mufflers with "Turn-out" end-cap.
- Available as optional Spark Arrestor on applications not originally equipped with a Spark Arrestor
- Please see our Insert Chart to confirm fitment for your application
Fitment:
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2013–2020 – Honda CRF250L
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2017–2020 – Honda CRF250L Rally
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2021–2025 – Honda CRF300L
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2021–2025 – Honda CRF300L Rally
Kit Includes:
- Spark Arrestor Insert
- End-cap collar
- Set screw
Are you looking for the Yoshimura R&D CRF300L
slip-on exhaust: CLICK HERE
For all Yoshimura exhaust and hard parts
available at TMBR MOTO: CLICK HERE

This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product. Email us with any questions.
Yoshimura R&D products are proudly designed, developed and
manufactured in Chino, California.