At DMG Motorsports, we present the Yoshimura RS-4 Exhaust Spark Arrestor Turn-Out Cap Replacement (SA-13-K) — a direct-fit factory replacement built for riders who need to keep their Yoshimura RS-4 muffler compliant on public and forest service land without sacrificing the performance they installed it for. This insert kit is purpose-engineered as a USFS-approved replacement spark arrestor for RS-4 mufflers equipped with the distinctive "turn-out" end-cap, making it the ideal choice whether you're swapping out a worn factory unit or adding spark arrestor capability to a system that didn't originally include one. Backed by Yoshimura's legendary exhaust engineering, the SA-13-K restores trail-legal function to your exhaust with genuine OE-spec fit and reliable spark containment.

Features:

• Replacement USFS Approved Spark Arrester designed specifically for RS-4 Mufflers with a "Turn-out" end-cap
• Available as an optional spark arrestor on applications not originally equipped with a spark arrestor
• Kit includes the Spark Arrester Insert and End-cap
• Functions as a mechanical muffler accessory that traps or destroys hot exhaust particles expelled from the engine, helping prevent sparks from starting fires
• Genuine Yoshimura replacement part engineered to match RS-4 turn-out cap muffler systems
• Helps keep off-road and dual-sport machines compliant with USFS spark arrestor requirements on public trails and forest land

Fitment