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Introducing Podium Points! Get rewarded for every dollar you spend. Click the Rewards button at the bottom of the page!
Yoshimura's AT2 race system for the Ninja 500 and Z500, built for the track: stainless headers, a Works Finish stainless muffler and a carbon fiber heel guard. It saves 6.3 lb over stock (8.7 lb against 15.0 lb), and Yoshimura measured 5.7% more peak horsepower and 6.1% more peak torque from the 451cc twin. The INS-20-K low-volume insert comes with it for tracks with a noise limit; even with it in, Yoshimura measured 102.6 dB at 5,000 rpm.
Fits Kawasaki Ninja 500 / Z500 2024–2026
We sell this part for closed-course competition use only, and do not ship it to California. Yoshimura makes it as a Race Series part: for closed course competition only, not intended for street use.
| Bike | Years | Notes |
|---|---|---|
| Kawasaki Ninja 500 | 2024–2026 | — |
| Kawasaki Z500 | 2024 | — |
Check the fitment list for your exact bike and year, and order every part it says this one needs.
| Line | AT2 |
|---|---|
| Yoshimura series | Race |
| Type | Full |
| Header | Stainless |
| Muffler sleeve | Stainless |
| End cap | Carbon Fiber |
| Weight | 8.7 lb (stock: 15.0 lb) |
| Yoshimura's dyno | +5.7% peak horsepower, +6.1% peak torque |
| Sound (J2825, with INS-20-K) | 95.7 dB at 2,000 rpm, 102.6 dB at 5,000 rpm (stock: 76.6 / 84.8 dB) |
| Included | Carbon fiber heel guard; INS-20-K low-volume insert |
| Made in | Chino, California |
| Sound inserts / spark arresters (sold separately) | INS-20-K |
| Yoshimura part number | 14730AP520 |
| Use | Closed-course competition only; not shipped to California |
Ships to the lower 48 and DC. Returns accepted on most items.
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