FMF Racing - FMF042383 - Kawasaki KLX140/L/G 2008-2026 Anodized Titanium Factory 4.1 Muffler with Stainless Steel Header

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

• Highest-quality proprietary blend of alloy grade titanium
• Blue anodized titanium muffler with carbon end cap
• Massive power gains throughout the RPM range
• Rapid Tuning System (RTS)

The FMF Racing Factory 4.1 RCT exhaust system is designed for Kawasaki KLX140, KLX140L and KLX140G applications. It incorporates FMF Resonance Chamber Technology™ internally and externally, while its shorter overall length helps reduce susceptibility to crash damage. Factory Forward Engineering positions the muffler closer to the motor to help centralize mass.

Constructed from aerospace-grade materials and manufactured at FMF Racing’s Southern California factory, the system features a proprietary alloy-grade titanium construction, a blue anodized titanium muffler and a carbon end cap. The Factory 4.1 RCT is also equipped with FMF’s Rapid Tuning System (RTS) and is designed to deliver power gains throughout the RPM range.

Key Features & Performance Benefits

• Resonance Chamber Technology: Incorporates FMF Resonance Chamber Technology™ internally and externally.
• Shorter Overall Length: Helps reduce susceptibility to crash damage.
• Factory Forward Engineering: Moves the muffler closer to the motor to centralize mass.
• Rapid Tuning System: Includes FMF’s Rapid Tuning System (RTS).

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF042383
• Product: Factory 4.1 RCT muffler with stainless steel header
• Part Type: Powersports
• Construction: Aerospace-grade materials
• Muffler Material: Alloy-grade titanium
• Muffler Finish: Blue anodized titanium
• End Cap: Carbon

What’s Included in the Box

• Factory 4.1 RCT muffler
• Stainless steel header

Fitment

Fits 2008 Kawasaki KLX140, 2008 Kawasaki KLX140L, 2009 Kawasaki KLX140, 2009 Kawasaki KLX140L, 2011 Kawasaki KLX140, 2011 Kawasaki KLX140L, 2012 Kawasaki KLX140, 2012 Kawasaki KLX140L and 2013 Kawasaki KLX140 and KLX140L models.

Fitments:
2008 Kawasaki KLX140 Base
2008 Kawasaki KLX140L Base
2009 Kawasaki KLX140 Base
2009 Kawasaki KLX140L Base
2010 Kawasaki KLX140 Base
2010 Kawasaki KLX140L Base
2011 Kawasaki KLX140 Base
2011 Kawasaki KLX140L Base
2012 Kawasaki KLX140 Base
2012 Kawasaki KLX140L Base
2013 Kawasaki KLX140 Base
2013 Kawasaki KLX140L Base
2014 Kawasaki KLX140 Base
2014 Kawasaki KLX140L Base
2015 Kawasaki KLX140 Base
2015 Kawasaki KLX140L Base
2016 Kawasaki KLX140 Base
2016 Kawasaki KLX140L Base
2017 Kawasaki KLX140 Base
2017 Kawasaki KLX140G Base
2017 Kawasaki KLX140L Base
2018 Kawasaki KLX140 Base
2018 Kawasaki KLX140G Base
2018 Kawasaki KLX140L Base
2019 Kawasaki KLX140 Base
2019 Kawasaki KLX140G Base
2019 Kawasaki KLX140L Base
2020 Kawasaki KLX140 Base
2020 Kawasaki KLX140G Base
2020 Kawasaki KLX140L Base
2021 Kawasaki KLX140R Base
2021 Kawasaki KLX140R F Base
2021 Kawasaki KLX140R L Base
2022 Kawasaki KLX140R Base
2022 Kawasaki KLX140R F Base
2022 Kawasaki KLX140R L Base
2023 Kawasaki KLX140R Base
2023 Kawasaki KLX140R F Base
2023 Kawasaki KLX140R L Base
2024 Kawasaki KLX140R Base
2024 Kawasaki KLX140R F Base
2024 Kawasaki KLX140R L Base
2025 Kawasaki KLX140R Base
2025 Kawasaki KLX140R F Base
2025 Kawasaki KLX140R L Base
2026 Kawasaki KLX140R Base
2026 Kawasaki KLX140R F Base
2026 Kawasaki KLX140R L Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1