Factory 4.1 RCT Exhaust System
Factory 4.1 RCT Exhaust System
Factory 4.1 RCT Exhaust System

Factory 4.1 RCT Exhaust System

Blagovna znamka: FMF
Koda izdelka: 18201900
1144,54 € z DDV
1030,09 € z DDV
Najnižja cena v zadnjih 30 dnevih: 1030,09 € z DDV

The FMF Factory 4.1 RCT full exhaust system combines proven race performance with controlled sound output. RCT (Resonance Chamber Technology) improves exhaust flow for stronger power across the entire RPM range while meeting AMA/FIM sound requirements (note: not compliant with 2025 FIM rule).

  • RCT patented core lowers dB while maintaining maximum power
  • Includes PowerBomb header + QuietCore 94dB insert
  • Spark arrestor included; carbon-fiber end cap; Made in the USA
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Get race-proven performance with smarter sound control. The FMF Factory 4.1 RCT Exhaust System is built for riders who want stronger, cleaner power delivery without excessive noise. Thanks to RCT (Resonance Chamber Technology), this system reduces decibels while preserving maximum power output—ideal for motocross and off-road riding where performance and sound limits both matter.

Internal ducts increase the system’s effective volume and improve exhaust flow, delivering power gains throughout the entire range. FMF’s Factory Forward Engineering helps centralize mass for better handling and makes the system less prone to crash damage. Tuning is simple too—the innovative rear end cap allows quick installation of tuning tip inserts or the included spark arrestor by removing just four screws.

Key features:

  • ✅ RCT patented core design lowers sound levels while maintaining maximum power output
  • ✅ Improved exhaust flow via internal chamber ducts for power gains across the RPM range
  • ✅ Easy tuning/service rear end cap design for quick insert/spark arrestor changes

Benefits of using it:

  • 🔹 More usable power from bottom to top for faster lap times and better drive out of corners
  • 🔹 Meets AMA and FIM sound requirements for many events and riding areas (see note below)
  • 🔹 Durable, lightweight construction with premium materials and crash-smart design

Technical specifications:

  • 📌 Type: Full System (single canister)
  • 📌 Includes: FMF PowerBomb header, QuietCore 94dB insert, spark arrestor (in muffler)
  • 📌 Materials: Aluminum muffler, stainless steel pipe, carbon-fiber end cap
  • 📌 Finish: Raw
  • 📌 Brand/Model: FMF Factory 4.1 RCT
  • 📌 Made in: U.S.A.

Why choose this exhaust system?!

  • ⭐ Premium FMF engineering focused on performance, sound control and durability
  • ⭐ Includes key components riders usually add separately (QuietCore insert + spark arrestor)
  • ⭐ Smart design for easier setup and less crash vulnerability

Note: Will not pass 2025 FIM sound regulation.

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