FMF Factory 4.1 RCT Exhaust System
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  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System - Titanium/Titanium/Titanium
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System
  • FMF Factory 4.1 RCT Exhaust System

This product is bike-specific
Please click on "Select your bike" below to purchase the part that will fit.

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MSRP
$699.99
Savings (20%):
$140.00
Price
$559.99 - $1,124.99
The price depends on which bike you select. Select your bike to continue.

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Video Review

FMF Factory 4.1 RCT Exhaust System Videos

FMF Factory 4.1 RCT Full System

If you are looking to drop weight, improve looks and most importantly improve your bikes power band then look no further. The FMF Factory 4.1 RCT full system is constructed from aerospace-grade materials that meet FMF's exacting specifications and is 100% manufactured in their Southern California factory. The patented MegaBomb header design allows exhaust gases to expand, cool and ramp back up at a higher velocity. This results in torque gains typically associated with longer headers, and the healthy over-rev of a short header. The muffler itself is shorter than OEM mufflers, making it less susceptible to crash damage and complements the centralized mass design by moving it closer to the motor. The rear end cap was engineered for fast and easy tuning by utilizing a retaining ring to keep the standard and optional inserts in place.

Features:

  • Massive power gains throughout the RPM range
  • Huge weight savings over stock exhaust
  • RTS (Rapid Tuning System) for quick and easy track-side tuning
  • Removable spark arrestor included
  • Meets AMA and FIM sound requirements 
  • 100% made in the USA
This Product Fits:

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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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