Yoshimura · AT2 · Full System
Designed for the Suzuki GSX-8R 2024–2026, Suzuki GSX-8S 2023–2026, and Suzuki GSX-8T-TT 2026, it’s a focused upgrade for riders who want a premium Yoshimura setup engineered specifically for these models.
This AT2 system is listed with stainless construction and is supported by on-page resources like the included installation PDF, product video, and dyno chart. It is also offered with optional add-ons noted by Yoshimura, including a Low Volume Insert INS-20-K and an Aluminum Muffler bracket kit 200BG117200, with a fitment note for GSX8T/TT.
Sound
Sound output is documented in the provided SAE J2825 table, showing measured sound levels at 2000 rpm and 5000 rpm for the AT2 Full System Open and for the AT2 system with an insert. The same table also includes listed system weights for each configuration and for stock.
Installation
Yoshimura lists optional components for this full system, including the Low Volume Insert INS-20-K and the Aluminum Muffler bracket kit 200BG117200. The manufacturer also notes that the muffler bracket kit is not compatible with GSX8T/TT, so riders should verify their model in the fitment table before selecting accessories.
Fitment
Listed by Yoshimura for the Suzuki GSX-8R (2024–2026), GSX-8S (2023–2026) and GSX-8T-TT (2026). See the fitment table below for every model year.
Materials
This Yoshimura AT2 is a full system exhaust in stainless, built under the Speed Series Exhaust System product line. For a quick overview of the exact configuration shown, refer to the product photos and the specifications table displayed on the page.
Sound
The page includes a manufacturer-provided sound and weight table for multiple configurations, including the Speed Series AT2 Full System Open, the AT2 system with insert, and stock. The sound values are shown using SAE J2825 at 2000 rpm and 5000 rpm, and the same table lists weight for each configuration, making it easy to compare the listed setups at a glance.
Installation
Fitment for this AT2 Stainless Full Exhaust is specific to the Suzuki GSX-8R 2024–2026, Suzuki GSX-8S 2023–2026, and Suzuki GSX-8T-TT 2026. The page also provides practical support media, including an installation PDF and a product video, to help confirm what’s involved before installation. Optional parts are noted by Yoshimura, with a compatibility warning for the muffler bracket kit on GSX8T/TT.
| Part Number | 11720AP520C |
|---|---|
| Brand | Yoshimura |
| Product Line | Speed Series Exhaust System |
| Series | AT2 |
| System Type | Full System |
| Material | Stainless |
| Shipping Weight | 18 lb |
| Barcode | 00840025915404 |
| Emissions Compliance | QUALIFIED MANUFACTURER DECLARED "MODIFIED PART" |
| System Configuration | Sound Levels (SAE J2825) | Weight | |
| 2000 rpm | 5000 rpm | ||
| Speed Series AT2 Full System Open | 96.8 dB | 103.3 dB | 10.8 lbs |
| Speed Series AT2 Full System w/Insert | 88.1 dB | 99.1 dB | 10.9 lbs |
| Stock | 78.5 dB | 89.1 dB | 17.3 lbs |
| Make | Model | Model Years |
|---|---|---|
| Suzuki | GSX-8R | 2024–2026 |
| Suzuki | GSX-8S | 2023–2026 |
| Suzuki | GSX-8T-TT | 2026 |
Fitment as listed by Yoshimura for part number 11720AP520C.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
