Yamaha YZ85 2002 - 2025 R-304 Shorty Silencer Muffler

Pro Circuit R-304 Muffler

The R-304 silencer was developed as a full-race two-stroke silencer. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer. 

Features Include:

• 304 stainless steel intake tube
• Double-walled mounting bracket(s)
• 6061 T-6 brushed aluminum silencer body
• Stainless steel end-cap
• Tig and mig welded for strength and durability
• Allen head screws ensure easy repacking when needed for extended product life
• E-Glass internal packing for maximum packing life
• Made in the USA

Fitment Details

• Yamaha YZ85 2002
• Yamaha YZ85 2003
• Yamaha YZ85 2004
• Yamaha YZ85 2005
• Yamaha YZ85 2006
• Yamaha YZ85 2007
• Yamaha YZ85 2008
• Yamaha YZ85 2009
• Yamaha YZ85 2010
• Yamaha YZ85 2011
• Yamaha YZ85 2012
• Yamaha YZ85 2013
• Yamaha YZ85 2014
• Yamaha YZ85 2015
• Yamaha YZ85 2016
• Yamaha YZ85 2017
• Yamaha YZ85 2018
• Yamaha YZ85 2019
• Yamaha YZ85 2020
• Yamaha YZ85 2021
• Yamaha YZ85 2022
• Yamaha YZ85 2023
• Yamaha YZ85 2024
• Yamaha YZ85 2025