To this day - everything Yoshimura does revolves around building fast machines and winning races. What motivated Pop's Yoshimura over 50 years ago is the exact same thing that motivates Yoshimura today. Racing and winning. There is no other endeavor that they would rather be engaged in.
Replacement Low-Volume Insert Kit for RS-4 Mufflers.
Available as optional kit on applications requiring different sound restrictions.
Low-volume insert tube.
Note: Decibel reduction depends on application.
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A: This insert is not the correct insert for the Yoshimura RS-2 Dual exhaust system. You will need the RS-2 inserts. Keep in mind the inserts are sold individually so you will need to purchase 2 for this application.
Location: Prescott, AZ, USA
Q: I have a Yoshimura RS4 exhaust and I need a spark arrestor. On the unit it says, spark arrestor Model # TEC-SD. Is this RS4 insert compatible?
A: Unfortunately this insert will not work on your XR70R. This insert is specifically for a Yoshimura RS-4 system, which they do not manufacture for an XR70. The information provided makes me believe this is an OEM Honda exhaust. But we would need to verify this for sure before i can recommend anything for you. If you can please give us a call we will be able to assist you much better with this issue.