Yoshimura
The Yoshimura Sound Insert Kit YJP for R-11Sq mufflers is a replacement low-volume insert kit designed for specific R-11Sq mufflers used on the Suzuki GSX-R1000 2017–2025 (see the fitment table below). It’s a straightforward way to restore an insert setup or add an optional insert where an application calls for different sound restrictions.
This kit is part of Yoshimura Replacement Service Parts and includes the components needed for installation: insert tube, set screw, and lock washer. It’s a practical solution for riders and builders looking to maintain the correct muffler configuration with genuine Yoshimura service parts.
This Yoshimura kit is specified as a replacement low-volume insert kit intended for specific R-11Sq mufflers. It’s suited for servicing an existing muffler setup with the correct insert-style components rather than piecing parts together separately.
Yoshimura notes this insert kit is available as an optional kit for applications that require different sound restrictions. That makes it useful when a particular riding area, event, or requirement calls for a change in muffler sound configuration.
The kit includes the insert tube along with the small hardware needed to secure it: a set screw and lock washer. Having the insert and fastening pieces together helps simplify replacement or installation using the intended components.
Sound
The Sound Insert Kit YJP R-11Sq Muffler (INS-YJP-03-K) is categorized by Yoshimura as a Replacement Service Part and is identified as a low-volume insert kit for specific R-11Sq mufflers. It is offered both as a replacement item and as an optional kit on applications where different sound restrictions are required, helping keep a muffler configured to the desired setup.
Fitment
This kit is listed for the Suzuki GSX-R1000 2017–2025. Because it is specified for certain R-11Sq mufflers, confirming the exact application is important before installation; refer to the fitment table shown on the page for the supported model range. No performance figures are provided for this insert kit.
Included
Yoshimura lists the included components as an insert tube, set screw, and lock washer. These parts are intended to work together as a matched insert and retention hardware set, supporting a clean replacement or optional insert installation without sourcing separate pieces.
| Part Number | INS-YJP-03-K |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Shipping Weight | 1 lb |
| Barcode | 00840025918610 |
| Make | Model | Model Years |
|---|---|---|
| Suzuki | GSX-R1000 | 2017–2025 |
Fitment as listed by Yoshimura for part number INS-YJP-03-K.
