Q4 S/A Yfz450r '09

Features:

• Developed over years of championship off-road racing


• Max sound output 96db; most models below 93db


• Pounds lighter than stock


• Use with stock or FMF header


• Built-in spark arrestor included


• Easy to repack


• Not legal for use in California on pollution controlled vehicles, race use only in California - waiver available

Fitment:
2009 Yamaha YFZ450R
2010 Yamaha YFZ450R
2011 Yamaha YFZ450R
2012 Yamaha YFZ450R
2013 Yamaha YFZ450R
2014 Yamaha YFZ450R
2015 Yamaha YFZ450R
2016 Yamaha YFZ450R
2017 Yamaha YFZ450R
2018 Yamaha YFZ450R