FMF - 044460 - Factory 4.1 RCT Exhaust System - '19-'23 Yamaha YZ450FX, YZ450F
The FMF Factory 4.1 RCT Exhaust System features massive Power gains throughout the RPM range, Huge weight savings, and New RTS (Rapid Tuning System).
Features
- The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externally
- Shorter overall length that is less susceptible to crash damage and complementary to FMF's 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 FMF's exacting specifications and is manufactured 100% at their Southern California factory
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- Includes MegaBomb header
- Includes spark arrestor screen insert
Specs
- Product Name: Exhaust System
- Type: Full System
- Model: Factory 4.1 RCT
- Muffler Color/Finish: Raw
- Riding Style: Off-Road
- Pipe Material: Stainless Steel
- End Cap Material: Carbon Fiber
- Muffler Material: Aluminum
- Units: Each
Frequently Asked Questions - FMF - 044460 - Factory 4.1 RCT Exhaust System - '19-'23 Yamaha YZ450FX, YZ450F
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.
