FMF PowerCore 4 Slip-On Muffler - Yamaha YFZ450R
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✓ Fits
Yamaha YFZ450R (2009-2026) and YFZ450X (2010-2011). PowerCore 4 slip-on muffler.
✓ About the PowerCore 4
FMF built the PowerCore 4 to add horsepower and torque across the entire power curve, a real, usable power increase that works for every style of riding. It balances performance and durability with an aluminum canister and stainless steel Hi-Flo end caps, and it includes a removable spark arrestor so you can run it where one is required.
✓ Features
- Increases horsepower and torque throughout the entire power curve
- Usable power gains compatible with every riding style
- Aluminum canister with stainless steel Hi-Flo end caps
- Anodized champagne finish, oval style
- Removable spark arrestor included
- Slip-on design for straightforward installation
✓ What's Included
- One FMF PowerCore 4 slip-on muffler with removable spark arrestor
PAIR IT UP: For the full system and maximum gains, run this with the FMF PowerBomb head pipe.
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information visit www.P65Warnings.ca.gov.
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📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
