FMF PowerCore 4 Slip-On Exhaust for Kawasaki KLX140

More Power. Less Weight. Better Sound.

If you're looking for the single best bolt-on performance upgrade for your Kawasaki KLX140, the FMF PowerCore 4 delivers exactly what riders want: increased power, improved throttle response, significant weight savings, and the aggressive exhaust tone that makes your bike sound as good as it performs.

With one twist of the throttle, you'll immediately feel the difference.

Benefits

✔ Increased Horsepower and Torque

✔ Faster Throttle Response

✔ Weighs Only 2.5 lbs

✔ Pounds Lighter Than Stock

✔ Deep FMF Performance Sound

✔ Easy Slip-On Installation

✔ Race-Proven FMF Technology

✔ Aircraft-Grade Aluminum Construction

Wake Up Your KLX140

The stock KLX140 exhaust was designed to meet noise and cost requirements—not maximize performance.

The FMF PowerCore 4 improves exhaust flow and reduces restriction, allowing your engine to breathe more efficiently throughout the RPM range.

The result:

• Stronger acceleration
• Improved throttle response
• Better pulling power
• Increased riding enjoyment

Many riders describe the difference as making the bike feel like it gained engine displacement.

Lightweight Performance

At only 2.5 lbs, the PowerCore 4 significantly reduces weight compared to the factory exhaust system.

Reducing weight improves:

• Acceleration
• Handling
• Maneuverability
• Overall bike performance

Every pound removed helps your KLX140 feel more responsive on the trail, track, or around the property.

Built with Premium Materials

The PowerCore 4 is engineered for durability and long-term performance.

Features include:

• Aircraft-Grade Extruded Aluminum Canister
• Hi-Flo Stainless Steel Core
• Stainless Steel Components
• Formed End Caps
• Lightweight Performance Design

Built to handle years of riding abuse while maintaining peak performance.

Race-Proven FMF Technology

FMF has spent decades developing championship-winning exhaust systems for off-road and motocross competition.

The PowerCore 4 incorporates that same racing heritage to deliver increased power and improved throttle response for your KLX140.

Perfect For

• Kawasaki KLX140
• Trail Riders
• Pit Bike Enthusiasts
• Youth Racers
• Off-Road Riders
• Performance Builds

Product Details

• Manufacturer: FMF Racing
• Item ID: 042160
• Type: Slip-On Exhaust
• Weight: 2.5 lbs
• Application: Kawasaki KLX140
• Closed Course Competition Use Only

Why Riders Choose FMF

When KLX140 owners want more power, less weight, and a better riding experience, FMF remains one of the most trusted names in powersports performance.

More Power. Less Weight. More Fun.

Upgrade your Kawasaki KLX140 with the FMF PowerCore 4 and experience the difference every time you twist the throttle.

Fitment:
Kawasaki KLX140L Base 2008
Kawasaki KLX140L Base 2009
Kawasaki KLX140L Base 2010
Kawasaki KLX140L Base 2011
Kawasaki KLX140L Base 2012
Kawasaki KLX140L Base 2013
Kawasaki KLX140L Base 2014
Kawasaki KLX140L Base 2015
Kawasaki KLX140L Base 2016
Kawasaki KLX140L Base 2017
Kawasaki KLX140L Base 2018
Kawasaki KLX140L Base 2019
Kawasaki KLX140L Base 2020
Kawasaki KLX140L Base 2021-2026

 

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t