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Yoshimura Exhaust

Yoshimura Race Series RS-4 Mufflers

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Yoshimura's Race Series RS-4 mufflers were engineered using the same research and development that's been directed into their race-winning muffler design—a unique concept providing an unrivaled combination of power and a quiet exhaust note. The front cap design functions as a poly-resonant chamber, making for quieter mufflers with improved mid- to top-end power. Constructed with stainless steel sleeves, carbon fiber cones, and two-stage stepped baffles, Yoshimura conceived these exhausts with nothing but power in mind. Models are available for Honda® and Kawasaki applications.

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Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 123402D520

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 123402D520

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 123402D520

Muffler, Race Series RS-4, Pentagonal, Stainless Steel Body, Polished, Carbon Fiber End Cap, for use on Honda®, Each

Part Number: YSH-123402D520

Not Yet Reviewed

Estimated Ship Date: Oct 16, 2025 if ordered today

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Estimated Ship Date: Oct 16, 2025 if ordered today

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 193183

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 193183

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 193183

Offroad Exhaust Systems, Race, RS-4, Slip-On, Stainless Steel with Carbon Fiber End Cap

Part Number: YSH-123412D520

Not Yet Reviewed

Estimated Ship Date: Oct 16, 2025 if ordered today

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Estimated Ship Date: Oct 16, 2025 if ordered today

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 146500D520

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 146500D520

Yoshimura Race Series RS-4 304 Stainless Steel Inch Muffler 146500D520

Muffler, RS-4, Pentagonal, Stainless Steel, Polished, Turndown Outlet, Kawasaki, Each

Part Number: YSH-146500D520

Not Yet Reviewed

Estimated Ship Date: Oct 16, 2025 if ordered today

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Estimated Ship Date: Oct 16, 2025 if ordered today

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