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FMF Powercore 4 Muffler - Honda TRX400EX (1999-2008) & TRX400X (2009-2014) | Racing Series
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FMF Powercore 4 Muffler - Honda TRX400EX (1999-2008) & TRX400X (2009-2014)

FMF041025
Out of stock
Muffler
$399.99 $330.50
Imagine the thrill of instant throttle response and improved acceleration every time you hit the gas....

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FMF Powercore 4 Muffler - Honda TRX400EX (1999-2008) & TRX400X (2009-2014)

Imagine the thrill of instant throttle response and improved acceleration every time you hit the gas. With the FMF PowerCore 4 Muffler - Honda TRX400EX (1999-2008) & TRX400X (2009-2014) | Racing Series, your bike will feel lighter, sound bolder, and perform at its peak, whether you're racing through dirt tracks or tearing up backcountry trails.

The FMF PowerCore 4 Muffler is designed with Factory Forward Engineering, this lightweight aluminum slip-on muffler delivers increased performance, durability, and an aggressive sound that enhances every ride. Featuring high-grade stainless steel end caps and a removable spark arrestor, the PowerCore 4 is perfect for both track and trail riders looking for a powerful yet affordable exhaust upgrade.

Stop settling for restrictive stock exhausts that hold back your bike’s potential. The FMF PowerCore 4 Muffler delivers pro-level performance at an unbeatable price. Get more power, less weight, and an incredible sound, all with easy installation. Upgrade today and experience the difference!

Features:

  • Noticeable Power Gains – Boosts horsepower and torque for better acceleration.
  • Lightweight Aluminum Canister – Reduces weight for improved handling.
  • Durable Stainless Steel End Caps – Built to withstand high heat and rough conditions.
  • Factory Forward Engineering – Optimized airflow for maximum efficiency.
  • Aggressive, Performance Sound – A deep, throaty tone without excessive noise.
  • Removable Spark Arrestor – Stay trail-legal with an easy-to-remove screen.
  • Easy Installation – Slip-on design means no complicated modifications needed.

Specifications:

Brand FMF Racing
Product Type Slip-On Performance Muffler
Material Aircraft-Grade Aluminum Canister, Stainless Steel End Caps
Weight Lightweight Design for Improved Handling
Technology Factory Forward Engineering for Maximum Efficiency
Performance Gains Increased Horsepower & Torque Throughout Power Band
Sound Deep, Aggressive Performance Tone
Spark Arrestor Removable Screen for Trail-Legal Use
Installation Slip-On Design – No Modifications Needed
Compatibility Fits Various Dirt Bikes & Off-Road Motorcycles
Durability Built to Withstand High Heat & Rough Conditions


This Part Fits:

Year Make Model Submodel
2001-2008 Honda TRX400EX Sportrax Base

REVIEWS

CM

I put the FMF PowerCore 4 Muffler on my Yamaha WR450F, and the difference is night and day! The throttle response is crisp, the powerband is smoother, and the sound is just perfect, not too loud but with a deep, aggressive growl. Install was a breeze, and I love that the spark arrestor is removable for when I hit the trails. Worth every penny!

Chris M.

Denver, CO

JR

Bolted this onto my Honda CRF250R, and wow! More torque, better mid-range power, and it just makes the bike feel alive. The lightweight design is a bonus, and it looks great too. I’ve run FMF on all my bikes, and this one doesn’t disappoint. If you're on the fence, just get it, you won’t regret it!

Jake R.

Austin, TX

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