Yoshimura · RS-2 · Slip-On
The Yoshimura RS-2 Race Series slip-on exhaust system is built for Kawasaki KLX250S-SF 2009–2020 and Kawasaki KLX300S-SM 2021–2026 (see fitment table below). Designed to sharpen the riding experience on these popular dual-sport and supermoto platforms, it delivers the signature RS-2 look and Yoshimura exhaust tone in a streamlined slip-on package.
This system features an aluminum muffler and comes with a spark arrester installed for trail-focused use. It also includes an O2 sensor bung to suit the KLX fuel technology, making it a purposeful upgrade for riders who want a refined, model-specific RS-2 solution.
Materials
Built around an aluminum muffler, this RS-2 slip-on brings Yoshimura’s Race Series styling to the KLX platform in a clean, compact layout. As a slip-on system, it’s designed to replace the muffler section while keeping the overall package focused and rider-friendly.
Included
A spark arrester is included with this system: SA-07-K (included). With the installed spark arrestor noted for trail use, the RS-2 is ready for riders who split time between backroad exploring and off-pavement riding. Additional spark arrester and sound insert options are listed on the page.
Technology
This RS-2 includes an O2 sensor bung to accommodate the fuel technology of the KLX.
Sound
Part of Yoshimura’s Race Series Exhaust System line, the RS-2 series is offered here as a slip-on system for the KLX platform. The combination of a slip-on layout and an aluminum muffler creates a purposeful upgrade that targets sound and feel while keeping the system straightforward and model-specific for the listed Kawasaki applications.
Installation
This RS-2 slip-on is supplied with a spark arrester (SA-07-K included), aligning it with the KLX’s reputation as a bike that can move from track-style riding to trail time. The page also details other available spark arrester and sound insert options, making it easy to review configuration choices before installation.
Fitment
Fitment is specified for Kawasaki KLX250S-SF 2009–2020 and Kawasaki KLX300S-SM 2021–2026. An installation PDF is provided on the page for reference, and the system includes an O2 sensor bung to accommodate KLX fuel technology. Always confirm the exact model and year in the fitment table below before purchase and installation.
| Part Number | 14302BC350 |
|---|---|
| Brand | Yoshimura |
| Product Line | Race Series Exhaust System |
| Series | RS-2 |
| System Type | Slip-On |
| Material | Aluminum |
| Spark Arrester | SA-07-K (included) |
| Shipping Weight | 10 lb |
| Barcode | 00840025915626 |
| Emissions Compliance | QUALIFIED MANUFACTURER DECLARED "MODIFIED PART" |
| Make | Model | Model Years |
|---|---|---|
| Kawasaki | KLX250S-SF | 2009–2020 |
| Kawasaki | KLX300S-SM | 2021–2026 |
Fitment as listed by Yoshimura for part number 14302BC350.
| Part Number | Type | Included With This System |
|---|---|---|
| SA-07-K | Spark Arrester | Yes |
| INS-08-K | Sound Insert | No |
| SA-02-K | Spark Arrester | No |
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
