Exhaust› Mufflers and Resonators

FMF

Powercore 4 Slip-On Muffler

$399.99

SKU: 043376

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

Moderate — 2–4 hours

Overview

The FMF Powercore 4 is a slip-on muffler designed to deliver race-inspired performance at an economical price. It offers an overall increase in power and torque. The muffler is constructed from durable stainless steel and aluminum with advanced packing material for longevity.
Show original supplier description
The FMF Powercore 4 slip-on muffler is engineered to provide race-inspired performance while remaining economical. It delivers an overall increase in power and torque, enhancing your riding experience. The construction combines durable stainless steel and aluminum, ensuring longevity. Advanced packing material is utilized to maximize the lifespan of the muffler. This muffler features a natural finish aluminum can with a stainless steel midpipe and endcap. It includes a removable screen insert spark arrestor. An optional 96dB quiet insert is available separately for reduced sound levels. The product is subject to a CARB warning, indicating it is intended for closed-course competition use only and not for use on public roads or land. The Powercore 4 is specifically designed to fit KAWASAKI KLX400SR models from 2003-2004, and SUZUKI DRZ400 (2006-2007), DRZ400S (2000-2022), and DRZ400SM (2005-2021) models. Users must acknowledge and agree to terms stating the product is for racing purposes only.

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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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandFMF
Part Number043376
CategoryExhaust
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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