Yoshimura Spark Arrester Kit SA-03-K | Yoshimura RS-2 Off-Road Muffler 1.50-Inch | USFS Approved

The Yoshimura Spark Arrester Kit SA-03-K is a USFS-approved 1.50-inch spark arrester insert for the Yoshimura RS-2 off-road muffler, supplied with the spark arrester insert, end-cap collar and set screw.

Nearly every public off-road riding area in the United States — national forests, BLM land and organized OHV parks — requires an approved spark arrester, and it is checked at staging areas and gate entries. Race-intent mufflers ship without one, so this insert is what separates a bike that can legally ride public trails from one that cannot.

It drops into the muffler outlet and is retained by the supplied collar and set screw, so it comes out for closed-course days and goes back in for trail riding without pulling the muffler apart. It also serves as a replacement for an arrester that has clogged with carbon or been damaged.

• USFS approved spark arrester insert
• 1.50-inch size, for the Yoshimura RS-2 off-road muffler
• Kit includes spark arrester insert, end-cap collar and set screw
• Adds spark arrester capability to RS-2 off-road systems not originally equipped with one
• Removable and refittable without muffler disassembly
• Yoshimura part number 961-9021 (manufacturer part SA-03-K)

Required equipment for riding Yoshimura RS-2 off-road equipped dirt bikes, enduros and dual sports in US Forest Service areas, BLM land and organized OHV parks. Note that Yoshimura lists more than one 1.50-inch RS-2 off-road insert (SA-02-K and SA-03-K) — check the Yoshimura insert chart, or contact us, to confirm which is correct for your specific muffler before ordering.