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An AT2 3/4 system for the 2019-on ZX-6R 636, with Yoshimura's Works Finish, a matte carbon fiber end cap and heel guard, and the AT2's faceted tip. It weighs 5.3 lb against a 16.1 lb stock muffler, and Yoshimura measured 2.1% more peak horsepower, 4.7% more peak torque and a more linear throttle response. The INS-20-K sound insert is included. Open, Yoshimura measured 92.3 dB at 2,000 rpm and 105.6 dB at 5,000 rpm (J2825). Made in the USA.
Fits Kawasaki ZX-6R 636 2019–2026
| Bike | Years | Notes |
|---|---|---|
| Kawasaki ZX-6R 636 | 2019–2026 | — |
Check the fitment list for your exact bike and year, and order every part it says this one needs.
| Line | AT2 |
|---|---|
| Yoshimura series | Street |
| Type | 3/4 |
| Pipe | Stainless |
| Muffler sleeve | Stainless |
| End cap | Carbon Fiber |
| Finish | Yoshimura Works Finish |
| Weight | 5.3 lb (stock muffler: 16.1 lb) |
| Yoshimura's dyno | +2.1% peak horsepower, +4.7% peak torque |
| Sound (J2825, open) | 92.3 dB at 2,000 rpm, 105.6 dB at 5,000 rpm |
| Included | INS-20-K sound insert |
| Made in | USA |
| Sound inserts / spark arresters (sold separately) | INS-20-K, INS-27-K |
| Yoshimura part number | 14642CP522 |
Ships to the lower 48 and DC. Returns accepted on most items.