Skip to product information
1 of 1

Yoshimura

Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K)

Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K)

SKU:INS-RS9C-K

Regular price $40.95
Regular price Sale price $40.95
Sale
Shipping calculated at checkout.

Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K) Owner’s Manual & Product Guide

View or download the official product manual for the Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K). This guide may include important information about helmet features, fitment, care, use, safety details, replacement parts, and product-specific instructions.

✔ Download Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K) Manual
View full details

Yoshimura · RS-9

Low-Volume Insert Kit for RS-9 Mufflers

The Yoshimura Sound Insert Kit RS-9 Muffler, 1.125" is a replacement low-volume insert kit designed for Yoshimura RS-9 mufflers. Built for riders who need an optional insert solution on applications that require different sound restrictions, this kit provides a straightforward way to configure an RS-9 muffler with a low-volume insert.

This kit is non-spark arrested, and the amount of decibel reduction will vary by application. For application confirmation, refer to the insert chart shown on the page and the installation PDF link provided.

  • Part NumberINS-RS9C-K
  • SeriesRS-9

RS-9 Low-Volume Insert

Designed as a replacement low-volume insert kit for RS-9 mufflers, this package centers around a low-volume insert tube to support sound management needs on select applications that call for different sound restrictions.

Non-Spark Arrested Design

This insert kit is specified as non-spark arrested. It is intended for use cases where a low-volume insert is desired without a spark arrester, based on the requirements of the specific application.

Complete Insert Hardware

The kit includes the key components needed for installation: a low-volume insert tube, an end-cap collar, and a set screw. Pairing these pieces together supports a secure fit within the RS-9 muffler end-cap assembly.

Yoshimura SOUND INSERT KIT RS-9 Muffler, 1.125" (INS-RS9C-K) – What This Kit Is

Sound

What This Kit Is

Yoshimura’s INS-RS9C-K Sound Insert Kit is part of the Replacement Service Parts product line and is built specifically for RS-9 series mufflers. It is described as a replacement low-volume insert kit, and it can also be used as an optional kit on applications that require different sound restrictions. Because decibel reduction depends on the application, the most accurate way to confirm suitability is to use the insert chart referenced on the page.

Included

Included Components

This kit is comprised of the components Yoshimura lists for the RS-9 low-volume insert configuration: a low-volume insert tube, an end-cap collar, and a set screw. These parts are intended to work together as a matched set for RS-9 mufflers, supporting correct placement and retention of the insert at the muffler outlet.

Installation

Fitment and Installation

No specific vehicle fitment is provided in the product data, so application verification should be done using the insert chart mentioned on the page. An installation PDF is also available on the product page to guide the process. Since sound output changes can vary by application, confirming the correct insert selection for the muffler setup is an important step before installation.

Specifications

Part Number INS-RS9C-K
Brand Yoshimura
Product Line Replacement Service Parts
Series RS-9
Shipping Weight 0.35 lb
Barcode 00840025908833

Installation & Documents

Instructions / What's Included (PDF)

Provided by Yoshimura. Opens in a new tab.

⚠️ WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more.