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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
FMF Powercore 4 Muffler - 044222 Yamaha WR 450 / YZ 450 2003-2006Features Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable 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 Removable spark arrestor included Specs Units Each Product Name Muffler Riding Style Off Road Type Slip On Base Color Silver End Cap Style Conical Riding
Features
- Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable 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
- Removable spark arrestor included
Specs
| Units | Each |
| Product Name | Muffler |
| Riding Style | Off-Road |
| Type | Slip-On |
| Base Color | Silver |
| End Cap Style | Conical |
| Riding Style | Adventure Touring / Dual-Sport |
| End Cap Material | Stainless Steel |
| Model | Powercore 4 |
| Muffler Material | Aluminum |
| Style | Oval |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Easy
Size: CF11966&CA12166
Perfect fit. Easy to install. Good price. When changing the cabin filter the screw removal is a little easier if you notch out the plastic in front of it. Its behind the glove box and is not noticeable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 4
Filter My Cash
Size: CF12150&CA10262
Awesome quality filters and fit just like original equipment. Dealer wanted $140.00 to install. $21 And ten minutes later I was done. Got them next day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Great product
Size: CF10134&CA11476
Price great. Fit perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
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