The work that went into developing the RS-4 muffler design paid big dividends in 2010 with Ryan Dungey winning the AMA 450 Supercross and Motocross Championship. That same R&D has been directed to developing the current generation RS-4, a unique design that provides an unrivaled combination of power and a quiet exhaust note. The RS-4 features a Polyresonant duplex chamber, a two-staged stepped baffle and an innovative carbon cone end cap.
Note: Image for reference only. Actual product may vary according to vehicle.
| Specifications | |
|---|---|
| SKU | 031-224502D320 |
| Brand | Yoshimura |
| SKU | MPN | Availability | In-Store Pickup | |
|---|---|---|---|---|
| Aluminum/Carbon Fiber | 031-224502D320 | 224502D320 | Unavailable. | - |
