Customer Service (503) 832-7336
The Only Place For People Who Ride


Couldn't load pickup availability
Free standard shipping on orders over $149
We ship to the lower 48 United States. Orders over $149 ship free; a flat rate applies under $149. Estimated delivery dates are shown at checkout based on item availability and the shipping option you choose.
We text or call to confirm sizing & fitment before we ship.
Every Factory SuperBike order includes a free expert check from real riders. Before we ship helmets and gear, we text or call to confirm your size and fit; for parts, we verify fitment to your bike. This is why we don't have to guess and you don't have to gamble.
Helmet & gear orders: reply to our text to confirm and your order ships, typically same day. No reply within 48 hours and we'll call you. Questions now? Call or text (503) 832-7336.
The Yoshimura RS-12 End Cap Kit is the replacement matte carbon fiber end cap assembly for RS-12 mufflers in the YM1 Yamaha application, restoring the works-look finish of a muffler whose original cap has been scratched, cracked or scuffed.
The end cap is the most exposed part of any off-road muffler and the first thing to suffer in a tip-over or from roost. Because Yoshimura moved the RS-12 away from the sandwich-mount designs common elsewhere in the industry, the cap can be replaced on its own rather than requiring a whole new canister — which is precisely why this part exists as a standalone kit.
Fitting the new cap restores both the appearance and the correct sealing at the muffler outlet, and it is a straightforward job with basic hand tools and no muffler disassembly.
The service part for RS-12 owners refreshing a damaged or weathered muffler rather than replacing the whole exhaust. Confirm the YM1 application code matches your RS-12 system with us before ordering, as Yoshimura builds several end cap variants across the RS-12 range.
Thanks for subscribing!
This email has been registered!
| Product | SKU | Description | Collection | Availability | Product type | Other details |
|---|