Yoshimura · RS-3
The Yoshimura SOUND INSERT KIT RS-3 Muffler, Monkey is a replacement service part designed specifically for the RS-3 muffler application on the Honda Monkey 2019–2026.
Built to fit correctly with the RS-3 for the Monkey, this insert is intended to bring the dB level down while maintaining a clean, purpose-made fit. It’s a straightforward way to tailor the RS-3 muffler setup for riders who want a more controlled sound output without changing the entire muffler assembly.
This sound insert is engineered for the Yoshimura RS-3 series muffler used on the Honda Monkey. Because it’s designed around the RS-3 for this application, it’s intended to fit properly and integrate cleanly with the muffler setup rather than relying on a generic solution.
Yoshimura designed this updated insert to take the dB level down for the Honda Monkey RS-3 muffler configuration. It’s a simple component swap aimed at riders looking to moderate exhaust sound while staying within the RS-3 muffler platform.
As part of Yoshimura’s Replacement Service Parts product line, the INS-28-K is intended for service, refresh, or setup changes on an existing RS-3 muffler application for the Monkey. It’s a targeted add-on for the RS-3 series rather than a full exhaust component.
Sound
The Yoshimura RS-3 sound insert for the Honda Monkey is a dedicated component created around the RS-3 muffler application. Yoshimura notes that this new insert is designed to fit perfectly with the RS-3 for the Monkey, focusing on correct integration and a clean installation outcome for the intended setup.
For riders using an RS-3 muffler on the Monkey, this insert is aimed at dialing back exhaust volume. Yoshimura states the insert is designed to take the dB level down, offering a practical way to adjust sound output while keeping the RS-3 muffler in place.
Fitment
This insert kit is listed for Honda Monkey 2019–2026 fitment; see the fitment table on the page for the exact model-year range. An installation PDF is provided on the page to support correct installation of the sound insert on the RS-3 muffler application.
| Part Number | INS-28-K |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-3 |
| Shipping Weight | 1 lb |
| Barcode | 00840025910430 |
| Make | Model | Model Years |
|---|---|---|
| Honda | Monkey | 2019–2026 |
Fitment as listed by Yoshimura for part number INS-28-K.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
