What kind of power gains can I expect with this exhaust system?

This system is designed to provide massive power gains throughout the entire RPM range. The specific increase can vary based on your bike's setup and tuning, but it's engineered to significantly boost performance.

What is the Resonance Chamber Technology (RCT)?

Resonance Chamber Technology is an internal and external design feature developed by FMF. It helps to tune the exhaust note and improve power delivery by managing exhaust gas pulses more effectively.

Does this exhaust system come with everything needed for installation?

This is a complete competition system that includes the muffler and a stainless steel Mid-Body Header. It is designed for direct fitment on the specified model, but always refer to the manufacturer's installation instructions for any specific hardware or procedures.

Specifications

Brand: FMF Racing
Part #: 042405

FMF Racing Kawasaki KX450F 2024 SS Alum Factory 4.1 RCT w/ R. Carbon Cap Comp System w/ SS MB Header

Name: FMF Racing Kawasaki KX450F 2024 SS Alum Factory 4.1 RCT w/ R. Carbon Cap Comp System w/ SS MB Header
Brand: FMF Racing
SKU: fmf-racing-fmf-racing-kawasaki-kx450f-2024-ss-alum-factory-4-1-rct-w-r-carbon-ca-t14-686726
Price: 1155.83 USD
Availability: BackOrder

$1155.83

On Backorder — Expected to ship by Apr 22, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

FMF Racing Kawasaki KX450F 2024 SS Alum Factory 4.1 RCT w/ R. Carbon Cap Comp System w/ SS MB Header. Offers massive power gains throughout the RPM range.

Key Features

Fits the 2024 Kawasaki KX450F.
Constructed from aerospace-grade titanium for a strong yet lightweight build.
Features FMF's Resonance Chamber Technology (RCT) for improved power.
Blue anodized titanium muffler body with a carbon fiber end cap.
Shorter overall muffler length reduces susceptibility to crash damage.
Factory Forward Engineering moves the muffler closer to the motor to centralize mass.

This exhaust system is designed specifically for the 2024 Kawasaki KX450F. Please verify fitment with your specific vehicle details.

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About this part

Product Details

This FMF Racing Factory 4.1 RCT exhaust system starts with a proprietary blend of aerospace-grade titanium, ensuring it's both strong and lightweight. It's designed specifically for the 2024 Kawasaki KX450F, incorporating FMF's latest Resonance Chamber Technology (RCT) both inside and outside the muffler. This advanced design helps to improve power delivery across the entire RPM range, giving you more grunt when you need it.

The muffler itself is finished with a striking blue anodized titanium body and capped off with a carbon fiber end cap, giving it a factory race look. A key design element is its shorter overall length, which not only looks good but also makes it less prone to damage in a crash. This design also works with FMF's Factory Forward Engineering, tucking the muffler closer to the bike's center of mass. This centralization of weight can lead to improved handling and a more nimble feel on the track. The system also includes a stainless steel Mid-Body Header for a complete package.

This system is manufactured entirely at FMF's Southern California facility, meeting their strict quality standards. The Rapid Tuning System (RTS) allows for adjustments to fine-tune performance. If you're looking to get the most out of your 2024 KX450F, this exhaust system is built to deliver significant power improvements and a race-ready aesthetic.