Features:

• U.S. Forestry approved spark arrestor
• Megamax II is a reverse cone megaphone design and can be run open for closed course or with discs for off-road riding
• FMF has radically improved the PC IV by creating a modular end cap that allows for easy tuning with various end caps that alter the power band around the needs of the rider
• Quickly changed, the standard Hi-Flo 2″ end cap, the optional 1-3/4″ end cap for a smoother power delivery and the spark arrestor module all give the PC IV substantial versatility and tremendous performance gains
• Not legal for use in California on pollution controlled vehicles, race use only in California – waiver available

Fitment
Yamaha YFZ450R 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