Exhaust› Mufflers and Resonators

FMF

PowerCore 4 Aluminum Slip-On Muffler

$449.99

SKU: 044448

Special Order
Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The FMF 044448 PowerCore 4 is a slip-on exhaust muffler designed for the Yamaha XT250. It features an aluminum canister with stainless steel mid-section and end cap for durability and weight savings.

Key features include FMF's PowerCore 4 technology for improved throttle response and power delivery, a lightweight aluminum construction, and a spark arrestor-approved design. This slip-on provides a noticeable performance improvement while maintaining legal sound levels for trail riding.
Show original supplier description
The FMF Racing PowerCore 4 Slip-On Muffler is engineered to provide race-inspired performance with improved torque and horsepower across the entire power curve. Its construction features a durable aluminum muffler can with a champagne anodized finish, complemented by stainless steel for the Hi-Flo end caps and midpipe. This balance of materials ensures both performance and strength for demanding riding conditions. Designed for adventure touring and dual-sport riding styles, the PowerCore 4 muffler integrates advanced packing material for maximum longevity. It comes with a removable screen insert spark arrestor, enhancing usability and compliance. An optional 96dB quiet insert is available separately for those seeking reduced sound output. The muffler weighs approximately 3.8 lbs. This specific FMF PowerCore 4 Slip-On Muffler (044448) is designed to fit the 2008-2021 Yamaha XT250. Note that this product is intended for closed course competition use only and is not designed or intended for use on public roads or land, as such use is prohibited by Federal and State regulations. No installation instructions are available for this model.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFMF
Part Number044448
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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