FMF Factory-4.1 RCT Stainless Steel Silencer
  • View Larger

Customer rating on this product:

Read reviews (4) | Write a review

FMF Factory-4.1 RCT Stainless Steel Silencer

Our price:

We're sorry...This product is no longer available

Please see our 4-Stroke Exhaust category for more choices.

  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

  • Warranties

    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

  • Have questions?

    (Leave email if after hours)
    Call us: 1 800 336-5437
    7am-7pm Mon-Fri 8am-4pm Sat (Mountain Standard Time)
    The FMF Factory-4.1 RCT Stainless Steel Silencer features a bigger volume can which can utilize more packing material for better performance and longer lasting low output sound volume. The RCT in the front end of the exhaust is another huge added gain for sound and performance. The FMF Factory-4.1 RCT Stainless Steel Silencer is sound compliant with the FIM 2M Max sound test. The design of the FMF RCT exhaust was to offer a look that really fits the complex lines that many of the manufactures are leaning towards.
  • Incorporating the latest in Resonance Chamber Technology.
  • Patented core shape lowers sound level while maintaining maximum power output.
  • Patented canister shape increases internal volume for more sound absorbing material.
  • Patented chamber design to enhance and refine exhaust pressure.
  • Factory Forward Engineering centralizes mass and is less prone to crash damage.
  • Tuned exhaust with optimized core specifications for each application.
  • Innovative rear end cap for simple installation of tuning tip inserts or spark arrestor.
  • Meets AMA and FIM sound requirements.
  • Quiet Core 94db insert included.
  • Spark arrestor included in muffler.
  • Built 100% in the U.S.A. at FMF’s state-of-the-art-factory.
  • Maintenance made easy with the removal of 4 screws on the front end cap.
  • Compatible with stock head pipe or FMF head pipe.

FMF Factory-4.1 RCT Stainless Steel Silencer Reviews

Your review could win you a $100 or $500 gift card!

Each review submitted enters you into a $100 gift card monthly drawing, and a $500 gift card quarterly drawing!

0 of 0 people found this review helpful.

Ditch Your Stock Pipe

Comments On Nov 17, 2014:I needed to get a spark arrestor and had narrowed down my choice to either the 4.1 or the q4. I was concerned about how loud the 4.1 would be for trail riding and although it is deeper with the quiet insert installed it is not raspy or headache causing. Put your "Rich" EFI plug in and get out and ride.

Was this review helpful?

1 of 1 people found this review helpful.

instant performance upgrade

Comments On Jul 21, 2014:Besides the coolest exhaust note yet: this along with the FMF Grunt added imediate & noticable improvement in the throttle response & low end for my bike over the stock silencer. I hope I don't have to but I'd purchace it again.

Additional Comments On Jul 21, 2014:I typed FMF grunt when meaning FMF Snap.

Was this review helpful?

0 of 0 people found this review helpful.

good product

Comments On Mar 24, 2014:give more hp and very good sound good product

Was this review helpful?

1 of 1 people found this review helpful.

Major torque increase in 450SXF

Comments On Dec 04, 2013:This pipe absolutely cures the common complaint about the new 450SXF's lacking on bottom end torque. 3rd gear wheelies out of hairpin corners are common now even without a clutch kick. Once you take your stock muffler off, try looking through it and you'll see why the bike is so choked up.

Was this review helpful?

Frequent Buyer ProgramParts Finder