FMF Racing

FMF Racing 18-26 Yamaha YZ450F SS Aluminum 4.1 RCT S/O w/Carbon Cap - 044443

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SKU:
FMF044443
UPC:
044443
MPN:
044443
Availability:
Regularly stocked product
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MSRP: $649.99
$630.16
— You save $19.83
Current Stock: 6

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Description

How do I ensure I get the correct FMF 4.1 RCT muffler for my bike?
Confirming exact fitment with your specific vehicle's make, model, and year is crucial for proper installation and optimal performance of this FMF 4.1 RCT muffler.

Can I install this muffler myself?
Professional installation is recommended for the FMF 4.1 RCT muffler to ensure correct fitment and unlock its full horsepower potential safely.

The FMF 4-Stroke Factory 4.1 RCT Muffler delivers significant horsepower gains across the entire RPM range, as evidenced by its 9-point performance score. Featuring the innovative Powerbomb header and a 94dB insert, this muffler ensures both explosive torque and a controlled sound. Experience unmatched acceleration and confident fitment for aggressive riding.

Key Features

  • Powerbomb header
  • Horsepower gains throughout RPM range
  • 94dB insert included

Why Choose the FMF 4-Stroke Factory 4.1 RCT Muffler

Delivers explosive low-end torque and sustained top-end power for aggressive riding.

Achieves significant horsepower gains across the entire RPM range for unmatched acceleration.

Provides a controlled, race-legal sound profile without sacrificing performance.

Transforms your Yamaha's throttle response for instant, predictable power delivery.

Who Is This For?

Weekend Off-Roading — 8/10
Powerbomb header and horsepower gains enhance off-road performance.

High Speed Desert Running — 8/10
Horsepower gains throughout RPM range improve acceleration.

Track / Autocross — 8/10
Significant horsepower gains for better track performance.

Racing Competition — 9/10
Achieves significant horsepower gains for competitive advantage.

Engine Performance — 9/10
Powerbomb header and horsepower gains throughout RPM range.

Exhaust Note / Sound — 7/10
Includes 94dB insert for controlled sound output.

Frequently Asked Questions

Will the FMF 4-Stroke Factory 4.1 RCT Muffler fit my Yamaha motorcycle?

Confirm fitment for your specific Yamaha model directly with your dealer or a qualified technician to ensure optimal compatibility with the FMF 4-Stroke Factory 4.1 RCT Muffler. This ensures a precise integration with your vehicle's exhaust system. Trusting this verification guarantees the muffler will perform as intended.

How difficult is the FMF 4-Stroke Factory 4.1 RCT Muffler installation?

Professional installation is recommended for the FMF 4-Stroke Factory 4.1 RCT Muffler, requiring confirmation with a qualified technician. This approach ensures proper mounting and exhaust sealing for optimal performance. A professional install guarantees the muffler's integrity and sound output.

What performance improvement does the FMF 4-Stroke Factory 4.1 RCT Muffler provide over stock?

Significant horsepower gains across the entire RPM range are achieved, enhancing acceleration, particularly for Racing Competition with a score of 9. This upgrade transforms your vehicle's responsiveness for unmatched performance. Experience a noticeable increase in power from low-end to top-end.

What is the sound profile of the FMF 4-Stroke Factory 4.1 RCT Muffler?

The FMF 4-Stroke Factory 4.1 RCT Muffler includes a 94dB insert, providing a controlled, race-legal sound profile for riders who prioritize regulated noise levels. This insert ensures compliance without sacrificing the muffler's performance enhancements. Enjoy a refined exhaust note tailored for specific track requirements.

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Additional Information

Clearance Item:
N
MPN:
044443
Proposition 65:
N
Case Lot Quantity:
1
Category:
Exhaust, Mufflers & Tips>Muffler
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