At DMG Motorsports, we present the Yoshimura RS-9 Exhaust Quiet Insert, 1.125 In. Replacement Part (INS-RS9C-K / 961-9033) — a genuine Yoshimura low-volume insert kit built to help riders dial in sound output on RS-9 muffler systems without sacrificing the performance character Yoshimura exhausts are known for. Whether you're prepping for a track day with strict sound limits or just want a quieter setup for everyday riding, this factory-engineered insert drops in as a straightforward replacement to help your RS-9 muffler meet the noise levels you need.

Designed and sold as a genuine Yoshimura component, this insert kit is non-spark arrested and is intended as an optional upgrade for applications that call for different sound restrictions. Because decibel reduction varies by application, this insert is a smart way to adapt a single RS-9 muffler to a range of sound requirements, from casual street riding to more strictly regulated environments such as AMA or FIM competition. Pick up this exact 1.125" diameter insert from DMG Motorsports and get your RS-9 system tuned exactly how you need it.

Features:

• Genuine Yoshimura replacement low-volume insert kit for RS-9 mufflers
• 1.125 in. diameter insert designed to fit RS-9 exhaust systems requiring this size
• Non-spark arrested design
• Helps reduce noise output to meet AMA or FIM competition sound requirements
• Available as an optional kit for applications requiring different sound restrictions; decibel reduction depends on the specific application
• Kit includes: low-volume insert tube, end-cap collar, and set screw
• Yoshimura Part Number: INS-RS9C-K | SKU: 961-9033 | UPC: 0840025908833
• Simple, direct replacement installation into compatible RS-9 muffler systems