FMF Racing® Factory 4.1 Slip-On Muffler 044206

Fits 2004-2009, 2012-2015 Yamaha YFZ450

The Factory 4.1 is FMF Racing's premier ATV performance exhaust. It is guaranteed to produce more horsepower throughout the entire RPM range. If performance is your priority, the Factory 4.1 is the exhaust for you.

Features:

• If performance is your priority, the Factory 4.1 is the exhaust for you
• Used by Factory teams such as KTM, Epic Can-Am and Rath Racing
• Accepts optional quiet inserts and spark arrestors
• For use with FMF Powerbomb, FMF Megabomb, or stock header

Finish:

• PIPE MATERIAL: STAINLESS STEEL
• MUFFLER MATERIAL: TITANIUM
• MUFFLER COLOR/FINISH: RAW

Fitment:

• 2004-2009, 2012-2015 Yamaha YFZ450