Sound
For RS-4 Turn-Down
Built as a replacement low-volume insert tube for Yoshimura RS-4 mufflers equipped with a turn-down end-cap.
Yoshimura · RS-4
The Yoshimura Sound Insert Tube INS-RS4T-A is a replacement low-volume insert tube designed specifically for RS-4 turn-down end-cap mufflers. It’s intended for riders and builders who need to restore or change the sound-restriction setup of an RS-4 turn-down muffler using a genuine Yoshimura service part.
This insert is non-spark arrested, and decibel reduction will vary by application. Fitment is application-specific, so confirming the correct setup using the insert chart is recommended before ordering.
Sound
Built as a replacement low-volume insert tube for Yoshimura RS-4 mufflers equipped with a turn-down end-cap.
Installation
Designed to provide a lower-volume insert option for RS-4 turn-down end-cap mufflers. Because results depend on the specific application, the actual decibel reduction can vary depending on the bike and exhaust setup where it’s installed.
Engineering
Yoshimura RS-4, part of the Replacement Service Parts line.
Sound
Offered in Yoshimura’s Replacement Service Parts line, the INS-RS4T-A is intended for RS-4 mufflers that use the turn-down end-cap style. It can be used as a replacement insert tube when servicing an existing muffler or when selecting an optional sound-restriction configuration on applications that require different sound limits.
Fitment
This insert is described as a low-volume insert tube, with sound reduction that depends on the specific application. It is also explicitly listed as non-spark arrested, so it should be chosen only when a non-spark-arrested insert is appropriate for the intended use. Confirming fitment via the insert chart is recommended.
| Part Number | INS-RS4T-A |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | RS-4 |
| Shipping Weight | 0.35 lb |
| Barcode | 00840025909892 |
