Skip to product information
FMF Racing Yamaha YZ450F 2003-2005/WR450F 2003-2006 Powercore 4 Muffler
$399.99
Road-use check
Verify use before ordering. This item does not list street-use, OHV, emissions, homologation, or closed-course status in the available product details. It may be intended for closed-course competition, off-road/OHV, or non-highway use only. Please check applicable rules before purchase and installation.
FMF Racing Yamaha YZ450F 03-05/WR450F 03-06 Powercore 4 Muffler is a motorcycle exhaust component for Yamaha models listed in the title, built for riders who want a catalog-matched replacement or upgrade.
The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end caps make for the perfect balance of performance and strength. Aluminum performance muffler with durable stainless steel components. Completely redesigned for all late model applications. Removable spark arrestor included. Aluminum slip-on developed to increase the horsepower and torque throughout the entire power band. Fitment: Yamaha WR450F Base 2003 Yamaha WR450F Base 2004 Yamaha WR450F Base 2005 Yamaha WR450F Base 2006 Yamaha YZ450F Base 2003 Yamaha YZ450F Base 2004 Yamaha YZ450F Base 2005
Product details
- Brand: FMF
- Product number: 044222, 18210681, fmf044222
- Category: motorcycle exhaust component
- Manufacturer part number: 044222
- Unit: 1
- EPA: Compliant
- Category: Exhaust, Mufflers & Tips
- Subcategory: Muffler
Confirm the SKU, selected variant, and vehicle fitment before ordering.