At DMG Motorsports, we present the Yoshimura RS-4 Exhaust Spark Arrestor Insert Replacement Part SA-13-K-1 — a direct-fit, USFS-approved replacement insert engineered specifically for RS-4 mufflers equipped with Yoshimura's "turn-out" style end-cap. Whether your factory-installed spark arrestor has worn out or you're outfitting a machine that wasn't originally equipped with one, this insert keeps you compliant with U.S. Forest Service spark arrestor requirements so you can keep riding trails and off-road areas that mandate one. As the updated version of the original SA-13-K, this insert features an internal weldnut design that makes installation and removal noticeably easier than the original setup, saving you time and hassle when it's time to swap it in or out. Backed by Yoshimura's reputation for precision-engineered exhaust components, this insert is proudly made in the USA and built to the same exacting standards Yoshimura is known for on the track and trail alike.

Features:

• Updated version of SA-13-K, with a weldnut inside the insert making installation and removal easier
• Replacement USFS Approved Spark Arrester for RS-4 mufflers with "turn-out" end-cap
• Available as an optional Spark Arrester on applications not originally equipped with one
• 1.500" diameter insert designed as a direct-fit replacement part
• Made in the USA
• Genuine Yoshimura replacement part, SKU SA-13-K-1

Fitment