FMF Factory 4.1 RCT Slip-On Muffler for Select Yamaha YZ450F / YZ450FX / WR450F Models - Stainless Steel/Aluminum with Carbon Fiber End Cap - 044443
The FMF Factory 4.1 RCT Slip-On Muffler - Stainless Steel/Aluminum with Carbon Fiber End Cap - YZF/FX is a slip-on muffler for motorcycle, dirt bike, MX and street riders who want a simple way to upgrade their exhaust sound and performance. It is designed to be installed as part of a complete exhaust setup.
- Brand: FMF
- Product: Factory 4.1 RCT Slip-On Muffler - Stainless Steel/Aluminum with Carbon Fiber End Cap - YZF/FX
- Size: One Size
- Part Number: 1821-1838
- Category: Slip-On Mufflers
Always check the manufacturer's fitment information to confirm it fits your year and model before ordering. Some exhaust products are intended for off-road or competition use only, so confirm legality for your area.
- 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
- Notes
- Compatible with stock header or FMF header.
2019-2026 Yamaha WR450F - - 2019-2026 Yamaha YZ450FX - - 2018-2026 Yamaha YZ450F
Before you order, confirm fitment or sizing for your vehicle or gear. Contact DTM Powersports to request special pricing. Can’t find the part or gear you need? Ask us about special orders, and we’ll try to source it for you.