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 YFZ450 2004
Yamaha YFZ450 2005
Yamaha YFZ450 2006
Yamaha YFZ450 2007
Yamaha YFZ450 2008
Yamaha YFZ450 2009
Yamaha YFZ450 2012
Yamaha YFZ450 2013