FMF - Factory 4.1 RCT Titanium Anodized Slip-On w/ Carbon Cap (Beta)

FMF – Factory 4.1 RCT Titanium Anodized Slip-On w/ Carbon Cap (Beta)

The FMF Factory 4.1 RCT is built for Beta riders who want more power, less weight, and a cleaner, more centralized feel on the bike. Using FMF’s Resonance Chamber Technology inside and out, this slip-on is designed to smooth the power curve, add strong pull through every gear, and cut weight where it matters most. The shortened can sits tucked in tight to reduce crash damage, improve balance, and keep the bike feeling light and responsive.

Why We Like It

It transforms how a Beta four-stroke feels. The throttle response is crisp, the mid-to-top pull opens up noticeably, and the titanium construction drops real weight. The compact design also keeps it out of harm’s way in tip-overs, which is a big plus for trail and enduro riders.

Why It’ll Work for You

If you want a noticeable performance gain without a complicated install, this slip-on does the job. It fits cleanly, saves weight, and improves power everywhere without making the bike overly loud. The lighter titanium body helps the bike feel easier to maneuver, and the carbon end cap adds durability where the exhaust usually takes the biggest hits.

Key Features

• Blue anodized titanium muffler with carbon end cap
  
  
• Power gains throughout the entire RPM range
  
  
• Significant weight savings over stock
  
  
• New RTS (Rapid Tuning System)
  
  
• Constructed using FMF’s proprietary aerospace-grade titanium alloy
  
  
• See Features → Fitment tab for header compatibility