Yoshimura · TRC
The Yoshimura SOUND INSERT KIT TRC 4.5" Muffler, Street is a replacement low-volume insert kit designed for TRC mufflers. It provides a straightforward way to add or restore a sound-reducing insert on specific TRC applications where different sound restrictions may be required.
This kit is listed for Honda CBR250R 2011–2013, Kawasaki ER-6n 2009, Kawasaki Ninja-250R 2008–2012, Kawasaki Versys650 2008–2013, Kawasaki ZX-10R-RR 2006–2007, Suzuki GSX-R1000 2005–2008, Suzuki GSX-R600 2008–2018, Suzuki GSX-R750 2008–2018, Yamaha FZ1 2006–2013, Yamaha YZF-R6 2003–2005, Yamaha YZF-R6S 2006–2009, and Yamaha YZF-R6V 2006–2016. Decibel reduction varies by application; see the fitment table below to confirm compatibility.
Sound
Built around a low-volume insert tube, this kit is intended to help reduce exhaust sound on compatible Yoshimura TRC mufflers. Because each motorcycle and exhaust application is different, the amount of decibel reduction will depend on the specific fitment.
Installation
The kit includes the components needed to mount the insert assembly to the muffler: an end-cap collar and a set screw along with the insert tube. It’s designed as a replacement service part for maintaining or updating a TRC muffler setup.
Fitment
Yoshimura notes this insert kit can be used as an optional kit for applications that require different sound restrictions. It offers a practical way to configure a compatible TRC muffler to better match local requirements or preferred sound levels.
Sound
As part of Yoshimura’s Replacement Service Parts product line in the TRC series, TRC-INS-K is intended specifically for TRC mufflers. It focuses on the key elements of an insert system, centered on a low-volume insert tube and the hardware used to secure it at the end cap. This makes it well suited for riders who want a replacement insert solution without changing the rest of their exhaust configuration.
Fitment
This street-oriented insert kit is designed to provide a lower-volume option for compatible setups. Yoshimura indicates that decibel reduction depends on the application, so results will vary by motorcycle and configuration. For supported motorcycles and model years, reference the fitment table and use the included installation PDF shown on the page to guide correct placement and retention of the insert.
Installation
TRC-INS-K is listed for a defined set of sportbike and streetbike applications across Honda, Kawasaki, Suzuki, and Yamaha. Because this part is fitment-specific, confirming the exact make, model, and model year in the fitment table is recommended before installation. An installation PDF is provided on the page to assist with proper setup on compatible TRC mufflers.
| Part Number | TRC-INS-K |
|---|---|
| Brand | Yoshimura |
| Product Line | Replacement Service Parts |
| Series | TRC |
| Shipping Weight | 0.7 lb |
| Barcode | 00840025909380 |
| Make | Model | Model Years |
|---|---|---|
| Honda | CBR250R | 2011–2013 |
| Kawasaki | ER-6n | 2009 |
| Kawasaki | Ninja-250R | 2008–2012 |
| Kawasaki | Versys650 | 2008–2013 |
| Kawasaki | ZX-10R-RR | 2006–2007 |
| Suzuki | GSX-R1000 | 2005–2008 |
| Suzuki | GSX-R600 | 2008–2018 |
| Suzuki | GSX-R750 | 2008–2018 |
| Yamaha | FZ1 | 2006–2013 |
| Yamaha | YZF-R6 | 2003–2005 |
| Yamaha | YZF-R6S | 2006–2009 |
| Yamaha | YZF-R6V | 2006–2016 |
Fitment as listed by Yoshimura for part number TRC-INS-K.
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
