Yoshimura 99.06 in RS-4 Header/Canister/End Cap Exhaust System SS/Al/CF 234700D320

The Yoshimura RS-4 Header/Canister/End Cap Exhaust System, part number 234700D320, is designed for the 2012–2015 Yamaha WR450F. The system features a pentagonal-shaped muffler with maximized internal volume, a polyresonant duplex front chamber, and a stepped, two-stage core baffle. These design elements form the product’s exhaust construction while maintaining compatibility with a spark arrestor or sound insert.

This exhaust system has a listed length of 39 inches and is identified by manufacturer and vendor part number 234700D320. Fitment includes the 2012 Yamaha WR450F, 2013 Yamaha WR450F, 2014 Yamaha WR450F, and 2015 Yamaha WR450F. Verify the model year and application before ordering to help ensure proper fitment.

Features:

• Design: Pentagonal-shaped muffler
• Internal Volume: Maximized internal volume
• Front Chamber: Polyresonant duplex front chamber
• Core Baffle: Stepped, two-stage core baffle
• Compatibility: Spark arrestor and sound insert compatible
• Fitment: Fits 2012–2015 Yamaha WR450F models
• Construction: Stainless steel, aluminum, and carbon fiber components