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Ultimate Fmf Racing - 25+ Kawasaki Kx250f Anodized Titanium Factory 4.1 Rct Slip-on Muffler W/ R. Carbon Cap Flash Sale: 75% Off [Ii2DLu93]

$74.99 $239.99 -69%

FMF Racing 25+ Kawasaki KX250F Anodized Titanium Factory 4.1 RCT Slip-On Muffler w/ R. Carbon CapThe FMF Racing Factory 4.1 RCT Exhaust is engineered to deliver massive power gains and unmatched durability. Incorporating FMF’s Resonance Chamber Techn

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FMF Racing 25+ Kawasaki KX250F Anodized Titanium Factory 4.1 RCT Slip-On Muffler w/ R. Carbon Cap

The FMF Racing Factory 4.1 RCT Exhaust is engineered to deliver massive power gains and unmatched durability. Incorporating FMF’s Resonance Chamber Technology™ (RCT), it optimizes exhaust flow both internally and externally, enhancing throttle response and acceleration. With a shorter overall length and Factory Forward Engineering, it centralizes mass for improved handling and reduces crash damage risk.

Key Features:

  • Resonance Chamber Technology™ (RCT): Boosts power across the RPM range, providing more horsepower and torque for quicker acceleration.
  • Factory Forward Engineering: A compact design moves the muffler closer to the motor, improving bike balance and minimizing damage in crashes.
  • Aerospace-Grade Titanium Construction: Built from FMF’s proprietary titanium alloy, offering massive weight savings without sacrificing strength.
  • Blue Anodized Titanium & Carbon End Cap: Stunning blue anodized finish with a carbon end cap for reduced weight and enhanced durability.
  • Massive Power Gains: Noticeable improvements in power and torque throughout the RPM range, optimizing performance at any speed.
  • Rapid Tuning System (RTS): The new RTS system allows quick and precise tuning for optimal exhaust performance.

Why Choose FMF Factory 4.1 RCT?

  • Maximized Power & Torque: Significant gains in horsepower and torque across all RPMs for a faster, more responsive ride.
  • Lightweight & Durable: Aerospace-grade titanium provides a durable, lightweight design that reduces overall bike weight.
  • Built for Performance: Handcrafted in the USA with premium materials, the Factory 4.1 RCT delivers top-tier performance and reliability.
Year Make Model
2025 KAWASAKI KX250F
2025 KAWASAKI KX250X


What Our Customers Say

January 3, 2026

Absolutely no complaints!

A really great and incredibly useful thing.

- Dennis B..

January 3, 2026

Absolutely no complaints!

Well made and certainly worth the money.

- Damian G..

January 3, 2026

Absolutely no complaints!

A very fine piece of tech.

- Maxwell Q..

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