Yoshimura Signature RS-2 Full Exhaust System with Aluminum Muffler | ATV | Fitment Confirmation Required

The Yoshimura Signature RS-2 Full Exhaust System is a complete header-back exhaust for ATV use, built with a stainless steel header and mid-pipe feeding a diamond-shape aluminum RS-2 muffler with a stainless steel end cap.

The RS-2 evolved from Yoshimura's original TRC canister into a pyramidal sleeve carrying a larger core and more packing volume. The practical result is a system that increases power and sharpens delivery while running quieter than the pipe it replaced — which is why it became the value choice across Yoshimura's ATV range rather than a pure noise-and-peak upgrade.

The diamond canister section adds structural durability where a quad muffler takes hits from rocks and rollovers, and the straight single-core baffle flows freely behind the packing. The system accepts spark arresters and sound inserts.

• Complete header-back full exhaust system for ATV use
• Stainless steel header and mid-pipe with diamond-shape aluminum muffler
• Stainless steel end cap
• Larger core and increased packing volume for quieter operation than stock
• Spark arrester and sound insert compatible
• Yoshimura part number 961-8178 (manufacturer part 2376513)
• Made in the USA by Yoshimura R&D of America

The specification above is confirmed, but the exact ATV application for this part number needs verification — Yoshimura builds the Signature RS-2 full system for several quads. Contact us with your machine's make, model and year and we will confirm fitment before you order. Fit an approved spark arrester insert before riding on US Forest Service or BLM land.