Yoshimura · Alpha T
The Yoshimura AT2 Premium Muffler Repack Kit is a replacement service parts solution designed to refresh Yoshimura Road exhaust systems that use the Alpha T series muffler. By servicing the muffler at the suggested intervals, the exhaust can continue to operate the way it was intended, helping maintain airflow and sound quality.
Yoshimura notes that exhaust systems should be repacked every 7,000 - 10,000 miles, because dirty packing can restrict airflow from the motor and lead to power loss and sound degradation. This kit is listed for a wide range of street models from CFMOTO, Honda, Kawasaki, Suzuki, Triumph, and Yamaha; see the fitment table below for the full application list.
Materials
This kit includes Yoshimura premium packing material intended to restore proper muffler function when the original packing becomes dirty and restrictive. Repacking at the suggested mileage interval helps return freer airflow from the motor while bringing exhaust tone back toward the intended sound characteristics.
Installation
In addition to packing, the kit includes rivets and a rivet band to support a straightforward repack of the muffler. With the proper service parts on hand, the muffler can be refreshed as part of routine exhaust maintenance when it is time to service the packing.
Included
An Alpha T name badge is included for a clean, finished look after service. The kit also comes with repack instructions, helping keep the repack process organized and consistent with the components supplied in the package.
Performance
Yoshimura explains that Road exhaust systems need periodic repacking, and recommends servicing every 7,000 - 10,000 miles. Over time, dirty packing can restrict airflow from the motor, which Yoshimura states results in a loss of power and a degradation of sound. Repacking the muffler is intended to bring back freer airflow, restoring lost power and improving exhaust sound.
Included
As part of Yoshimura Replacement Service Parts for the Alpha T series, this AT2 Premium Muffler Repack Kit supplies the core consumables and hardware needed for the job. Contents listed include premium packing material, rivets, a rivet band, an Alpha T name badge, and repack instructions, supporting a complete refresh of the muffler’s internal packing and exterior fasteners.
Fitment
This repack kit is specified for a broad range of compatible applications across multiple manufacturers, including CFMOTO, Honda, Kawasaki, Suzuki, Triumph, and Yamaha models and model years. Confirm the exact bike match in the fitment table on the page. An installation PDF is also provided on the listing to reference during the service process.
| Part Number | REPACK-AT2-ADV |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | Alpha T |
| Shipping Weight | 1.85 lb |
| Barcode | 00840025912403 |
| Make | Model | Model Years |
|---|---|---|
| CFMOTO | 450NK | 2025–2026 |
| CFMOTO | 450SS | 2023–2026 |
| CFMOTO | 675SS | 2025–2026 |
| Honda | CB1000-Hornet | 2026 |
| Honda | CB1000R | 2018–2019 |
| Honda | CB750-Hornet | 2025–2026 |
| Honda | CBR1000RR | 2017–2026 |
| Kawasaki | Ninja-400 | 2018–2023 |
| Kawasaki | NINJA-500 | 2024–2026 |
| Kawasaki | Z400 | 2019–2023 |
| Kawasaki | Z500 | 2024–2025 |
| Kawasaki | Z900 | 2017–2024 |
| Kawasaki | ZX-10R-RR | 2022–2026 |
| Kawasaki | ZX-4R | 2023–2026 |
| Kawasaki | ZX-4RR | 2023–2026 |
| Kawasaki | ZX-6R | 2019–2026 |
| Suzuki | GSX-8R | 2024–2026 |
| Suzuki | GSX-8S | 2023–2026 |
| Suzuki | GSX-8T-TT | 2026 |
| Suzuki | GSX-R1000 | 2017–2027 |
| Suzuki | GSX-R600 | 2011–2026 |
| Suzuki | GSX-R750 | 2011–2026 |
| Suzuki | Hayabusa | 2008–2012, 2019–2020, 2026 |
| Suzuki | KATANA-1000 | 2020 |
| Triumph | Street-TRIPLE | 2018–2023 |
| Yamaha | MT-03 | 2020–2024 |
| Yamaha | MT-07 | 2018–2026 |
| Yamaha | MT-09-FZ-09 | 2021–2026 |
| Yamaha | MT-10 | 2018–2026 |
| Yamaha | Tracer-9-GT | 2021–2022 |
| Yamaha | XSR900 | 2022–2025 |
| Yamaha | YZF-R3 | 2015–2025 |
| Yamaha | YZF-R7 | 2022–2026 |
| Yamaha | YZF-R7-Kit | 2022–2025 |
| Yamaha | YZF-R9 | 2025–2026 |
Fitment as listed by Yoshimura for part number REPACK-AT2-ADV.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
