Exhaust› Mufflers and Resonators

HMF

Performance Series 4-Inch Aluminum Slip-On Exhaust

$399.95

SKU: 041413606071

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The HMF Performance Series slip-on exhaust system is designed for the Yamaha YFZ450R and YFZ450X. This system features a single 4-inch aluminum silencer that increases horsepower and torque while providing a better tone than the stock exhaust. It is significantly lighter than the stock silencer and includes the necessary hardware and mid-pipe to connect to the factory headpipe.
Show original supplier description
The HMF Performance Series slip-on exhaust system is engineered to enhance the performance of Yamaha YFZ450R and YFZ450X models from 2009-2021. This exhaust system is favored by both professional racers and recreational riders seeking improved performance from their ATVs. Constructed with a single 4-inch aluminum silencer, this slip-on exhaust is designed to deliver a significant increase in sound and tone compared to the stock system. The performance series features an unrestricted core that allows for maximum flow, contributing to an approximate 5 hp and 3 ft-lbs gain in power and torque, distributed evenly throughout the power curve. The system is substantially lighter than the original equipment, improving overall vehicle dynamics.

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

BrandHMF
Part Number041413606071
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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