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 series as a rookie in the same year, and again in 2012 with the Yoshimura backed GEICO Honda team winning both 250 Supercross Lites titles. That same R and 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: This product is CARB (California Air Resource Board) Compliant
Note: Image for reference only. Actual product may vary according to vehicle.
| Specifications | |
|---|---|
| SKU | 031-244722D320 |
| Brand | Yoshimura |
| SKU | MPN | Availability | In-Store Pickup | |
|---|---|---|---|---|
| Aluminum/Carbon Fiber | 031-244722D320 | 244722D320 | 10 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-219202D320 | 219202D320 | 9 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-219222D320 | 219222D320 | 8 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-242932D320 | 242932D320 | 5 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-262522D321 | XF-1-190741 | 4 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-234812D321 | 234812D321 | 4 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-231022D320 | 231022D320 | 4 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-231012D320 | 231012D320 | 3 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-218312D320 | 218312D320 | 3 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-262532D320 | 262532D320 | 2 In Stock. Ready to ship. | - |
| Aluminum/Carbon Fiber | 031-264622D320 | 264622D320 | Unavailable. | - |
| Aluminum/Carbon Fiber | 031-234822D320 | 234822D320 | Unavailable. | - |
