FMF Factory 4.1 Yamaha - 044211

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.

Titanium construction with durable stainless steel midpipe

Used by Factory teams such as KTM, Epic Can-Am and Rath Racing

Optional quiet insert or spark arrestor available

Use with FMF Powerbomb or Megabomb, or stock header

Type: Slip-On

Construction:Titanium

Finish: Natural

Midpipe: Stainless Steel

Endcap: Stainless Steel

Spark Arrestor: Screen Insert (included)

Quiet Insert included (94dB)

Weight: 5.4 lbs.

Notice: Closed Course Use Only

⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.