FMF Racing Honda CRF125F 19-26 SS Aluminum Mini Moto Fact 4.1 Slip-On Muffler

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.

• Customize with tuning inserts and spark arrestor; sold separately
• Superior power on stock and big bore motors

Upgrade your Honda CRF125F with the FMF Racing Factory 4.1 Slip-On Muffler, designed specifically for models from 2019 to 2023. Featuring FMF Resonance Chamber Technology™, this muffler optimizes power delivery and sound quality for both stock and big bore motors. Its innovative internal and external chamber design enhances performance while maintaining durability and a sleek appearance. The shorter overall length reduces vulnerability to crash damage and improves handling by moving the muffler closer to the engine, helping to centralize mass for better balance and control. Constructed from high-quality aluminum, this muffler combines lightweight strength with corrosion resistance, ensuring longevity in demanding riding conditions. The FMF Factory 4.1 is fully compliant with EPA standards and does not require carb acknowledgment, making it a hassle-free upgrade for serious riders seeking enhanced performance. Customization options include tuning inserts and a spark arrestor, available separately, allowing you to tailor the exhaust system to your specific riding needs. Whether you're racing or enjoying trail riding, this slip-on muffler delivers superior power, improved sound, and a sleek aesthetic that complements your Honda CRF125F. Easy to install, it fits seamlessly into the existing exhaust system, providing an immediate upgrade over stock components. Boost your motorcycle’s performance and enjoy a more aggressive sound with this high-quality, race-inspired muffler from FMF Racing.

Features:

• FMF Resonance Chamber Technology™ enhances power and sound quality

• Shorter length reduces crash damage susceptibility

• Centralizes mass by moving muffler closer to the motor for improved handling

• Constructed from durable, lightweight aluminum for longevity and corrosion resistance

• Compatible with stock and big bore Honda CRF125F models from 2019 to 2023

• Customizable with tuning inserts and spark arrestor (sold separately)

• Meets EPA compliance standards for environmentally conscious riding

• Easy installation fits seamlessly with existing exhaust system

Fitment:
Honda CRF125F Base 2019
Honda CRF125F Base 2020
Honda CRF125F Base 2021
Honda CRF125F Base 2022
Honda CRF125F Base 2023
Honda CRF125F Base 2024
Honda CRF125F Base 2025
Honda CRF125FB Big Wheel Base 2019
Honda CRF125FB Big Wheel Base 2020
Honda CRF125FB Big Wheel Base 2021
Honda CRF125FB Big Wheel Base 2022
Honda CRF125FB Big Wheel Base 2023
Honda CRF125FB Big Wheel Base 2024
Honda CRF125FB Big Wheel Base 2025