FMF - 044466 - Factory 4.1 RCT Slip-On Muffler - '20-'21 Yamaha WR450F
The FMF Factory 4.1 RCT Slip-On Muffler features meets AMA and FIM sound requirements, QuietCore 94 dB insert included, and Spark arrestor included in muffler.
Features
- RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
- Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
- FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
- Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
- Meets AMA and FIM sound requirements
- QuietCore 94 dB insert included
- Spark arrestor included in muffler
- Made in the USA
- Compatible with stock header or FMF header.
Specs
- Muffler Color/Finish: Blue
- Product Name: Muffler
- End Cap Material: Carbon Fiber
- Model: Factory 4.1 RCT
- Riding Style: Off-Road
- End Cap Color/Finish: Black
- Type: Slip-On
- Units: Each
- Muffler Material: Titanium
- Muffler Color/Finish: Anodized
Frequently Asked Questions - FMF - 044466 - Factory 4.1 RCT Slip-On Muffler - '20-'21 Yamaha WR450F
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
