Yamaha
YFM350 Raptor 2005 - 2015 Part No. 06-1733.FMF.F4N (oro2u.com) FMF 044203 FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. - 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.
- Available in natural or blue anodized finish (depending on model).
- Use with FMF Powerbomb or Megabomb, or stock header.  

Yamaha
YFM350 Raptor 2005 - 2015 Part No. 06-1733.FMF.F4N (oro2u.com) FMF 044203 FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. - 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.
- Available in natural or blue anodized finish (depending on model).
- Use with FMF Powerbomb or Megabomb, or stock header.  


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