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See more parts for Yamaha WR450F
Select the year of your Yamaha WR450F:
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.
Features:
Features:
- Available in Natural Aluminum Muffler with Carbon End Cap
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.
- Yamaha WR450F | YZ450F | YZ450FX 2018-2021
Other Part Numbers:
FMF Racing #79-40636
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2019 Yamaha WR450F |
WR450F | 2019 |
|
2018-2021 Yamaha YZ450F |
YZ450F | 2018-2021 |
|
2019-2021 Yamaha YZ450FX |
YZ450FX | 2019-2021 |
Over the decades, we’ve seen an amazing transformation in the world of motorcycles and ATVs. The progression of the technology is one of the challenges that keeps us going. FMF was there in the days when the singleshock and watercooled engines were huge innovations and we’re glad to be here now for the aluminum chassis and electronic fuel injection. Our goal will never change – take the most advanced machinery to its limit by building the world’s best performing exhausts. And its a fact, we build every exhaust by hand from start to finish right here in the U.S.
At the end of the day, there is always one major force keeping us motivated–throwing a leg over the bike and heading for the trails or the track. The biggest reward for us is knowing we’re helping our customers get the most out of their riding experience. We still ride every chance we get so we never forget why we got into this business in the first place.
LIMITED WARRANTY:
All merchandise manufactured by FMF Racing has a warranty against manufacturing defects for a period of one (1) year from date of purchase. Warranty is limited to the repair or replacement of defective products. There is no warranty for normal wear and tear, any type of crash damage or for product failure due to improper installation and/or maintenance. FMF Racing reserves the right to repair, replace or issue an FMF credit for defective product at its discretion. Credits are valid for a period of one (1) year from issuance. No credit will be issued for labor or other costs incurred beyond the value of the original product. Product returned as a warranty after having been used, if found to be defective, will not be valued at the full purchase price after one (1) year from date of purchase and a depreciated value will be estimated for used product. Product accepted as a warranty claim and repaired or replaced will be returned via ground freight no charge. Warranty excludes product that has been modified or where the product was improperly installed, abnormally used or misused or improperly maintained. This limited warranty is in lieu of all other guarantees or warranties implied or expressed. This includes, without limitation, any warranties or merchantability and fitment for a particular purpose. For products not manufactured by FMF Racing, there is no warranty expressed or implied though FMF Racing will pass on all warranties made by the manufacturer who has sole responsibility for performing such warranties. A return authorization number must be issued by FMF Racing before product is returned. Returns must be sent back to FMF Racing freight prepaid. Proof of purchase, such as a copy of the original invoice, must accompany all warranty claims. Warranties will be honored to the direct purchaser only.
All merchandise manufactured by FMF Racing has a warranty against manufacturing defects for a period of one (1) year from date of purchase. Warranty is limited to the repair or replacement of defective products. There is no warranty for normal wear and tear, any type of crash damage or for product failure due to improper installation and/or maintenance. FMF Racing reserves the right to repair, replace or issue an FMF credit for defective product at its discretion. Credits are valid for a period of one (1) year from issuance. No credit will be issued for labor or other costs incurred beyond the value of the original product. Product returned as a warranty after having been used, if found to be defective, will not be valued at the full purchase price after one (1) year from date of purchase and a depreciated value will be estimated for used product. Product accepted as a warranty claim and repaired or replaced will be returned via ground freight no charge. Warranty excludes product that has been modified or where the product was improperly installed, abnormally used or misused or improperly maintained. This limited warranty is in lieu of all other guarantees or warranties implied or expressed. This includes, without limitation, any warranties or merchantability and fitment for a particular purpose. For products not manufactured by FMF Racing, there is no warranty expressed or implied though FMF Racing will pass on all warranties made by the manufacturer who has sole responsibility for performing such warranties. A return authorization number must be issued by FMF Racing before product is returned. Returns must be sent back to FMF Racing freight prepaid. Proof of purchase, such as a copy of the original invoice, must accompany all warranty claims. Warranties will be honored to the direct purchaser only.
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