Yoshimura · RS-4
The Yoshimura Sound Insert Tube for RS-4T mufflers with a turn-down end-cap is a replacement low-volume insert designed for riders who need an alternative sound restriction setup. Listed under Yoshimura Replacement Service Parts and built specifically for the RS-4 series, this insert tube is intended for RS-4 "Turn-down End-cap" mufflers.
This is a non-spark arrested insert tube, and decibel reduction will vary by application. It is offered as an optional kit component for applications that require different sound restrictions. Refer to the insert chart on the page to confirm fitment for the intended application.
Designed as a replacement low-volume insert tube for Yoshimura RS-4 "Turn-down End-cap" mufflers. It is intended to restore or change the insert configuration on compatible RS-4 turn-down setups without switching to a different muffler assembly.
This insert tube is specified as non-spark arrested. It is meant for applications where a low-volume insert tube is desired, while recognizing that spark arresting capability is not part of this component.
Supplied as the low-volume insert tube only. The listing specifies that the dimpled ring is not included, helping ensure the correct expectations when replacing worn or missing insert components.
Sound
As part of Yoshimura’s Replacement Service Parts line, this RS-4 series insert tube is intended to support ongoing maintenance and configuration changes for RS-4 turn-down end-cap mufflers. It is identified as a low-volume insert tube option that can be used when an application calls for a different sound restriction arrangement, without replacing the muffler itself.
Fitment
This component is described as a low-volume insert tube, with sound reduction dependent on the specific application. Because results can vary, confirming the correct insert choice for the intended setup is important. Use the insert chart shown on the page to verify fitment guidance for the application before selecting this insert tube.
| Part Number | INS-RS4T-B |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-4 |
| Shipping Weight | 0.35 lb |
