At DMG Motorsports, we present the Yoshimura RS-4T Exhaust Quiet Insert 1.5 In Replacement Part (INS-RS4T-A) — a genuine Yoshimura accessory engineered to give riders control over their exhaust volume without sacrificing the performance they've come to expect from an RS-4 system. Built specifically for RS-4 "turn-down end-cap" mufflers, this insert tube drops neatly into your existing Yoshimura RS-4T muffler, helping you dial in sound output for track days, sound-restricted events, or neighborhood-friendly rides. Whether you're prepping for a noise-limited venue or simply want a mellower tone from your Yoshimura setup, this factory-correct replacement insert is the straightforward solution.

Features:

• Replacement Low-Volume Insert Tube designed specifically for RS-4 "Turn-down End-cap" mufflers
• Non-Spark Arrested construction
• Available as an optional kit for applications that require different sound restrictions
• Decibel reduction achieved will depend on the specific application
• Includes the Low-Volume Insert Tube only
• Genuine Yoshimura part number INS-RS4T-A for guaranteed fit and finish
• Simple, direct-fit installation into compatible Yoshimura RS-4T mufflers
• Backed by DMG Motorsports' commitment to authentic OEM and performance-brand parts