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FMF - Factory 4.1 RCT Slip-On (Yamaha)

Product Code: fmf-4-1-rct-slip-on-yamaha
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FMF - Factory 4.1 RCT Slip-On (Yamaha)

Get the factory look, sound and power without the cost with the FMF Factory 4.1 RCT Slip-on muffler for Yamaha 4-stroke motocross bikes. An all new design that incorporates the latest in resonance chamber technology, the 4.1 RCT slip-on gives an increase of power with the stock header for your bike. This is due to FMF's patented core shape that maintains maximum power output while being sensitive to noise levels, making this a perfect choice for areas where noise is an issue. The unique canister shape is what gives the 4.1 RCT the ability to absorb more sound due to the increase internal volume. Designed for the track or the woods (with the approved removable spark arrestor that prevents unwanted flames by screening any flammable debris), the Factory 4.1 RCT Slip-on will give your Yamaha motorcycle the perfect balance of power delivery and rideability in any condition.

One of the best upgrades that you can add to your motocross bike is a slip-on exhaust. It's a simple, affordable way to gain power and that factory look without spending a fortune. FMF offers the Factory 4.1 RCT Slip-on for all motocross bikes such as Yamaha, Kawasaki, Honda, Suzuki, KTM and Husqvarna. With over 30 years in racing and providing riders with a quality exhaust system, FMF Racing pushes the boundaries of what exhaust technology is to create a one of a kind performance for any rider looking to maximize their motocross bike. For those that know performance, the FMF Factory 4.1 RCT slip-on is ready for action.

Features:

  • All new 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 abosrbing 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 endcap for simple installation of tuning tip inserts or spark arrestor

 

REVIEW SNAPSHOT®

by PowerReviews
FMF - Factory 4.1 RCT Slip-On (Yamaha)
 
4.8

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Was this a gift?:
          • No (3)

        Reviewed by 4 customers

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        Displaying reviews 1-4

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        5.0

        Great value performance

        By Jimmy

        from Sydney, Aus

        Pros

        • Easy to fit
        • Improves Power Delivery
        • Looks great

        Cons

          Best Uses

            Comments about FMF - Factory 4.1 RCT Slip-On (Yamaha):

            Fitted the RCT muffler with the megabomb header to my 2014 YZ250F and it was very simple. It fit well and the power through the mid-range has improved.

            Really good value product that improves performance, looks good and is easy to install.

            • Was this a gift?:
            • No
             
            4.0

            great product

            By chris

            from sørlandet, norway

            Verified Reviewer

            Pros

            • Big Power Difference
            • Extremely light
            • Looks Awesome

            Cons

              Best Uses

                Comments about FMF - Factory 4.1 RCT Slip-On (Yamaha):

                You will gain more power.I allmost went off the track the first time i used it! You can feel the diffence. The negative side about the exhaust is the titanium. Its not the strongest.It will bend if you have a big crash. Overall its a good product. Just keep it on two wheels :)

                • Was this a gift?:
                • No
                 
                5.0

                Awesome Tailpipe

                By PRK 812

                from Texas

                Verified Buyer

                Pros

                • Easy Installation
                • Good Looks
                • Power Gain
                • Sounds Great

                Cons

                  Best Uses

                  • Motocross
                  • Off-road Riding

                  Comments about FMF - Factory 4.1 RCT Slip-On (Yamaha):

                  I bought the titanium pipe with the carbon end cap and I absolutely love it. FMF provides very clear installation instructions, and it was very easy to put on my 2013 YZ250F, even for a novice. Not only does it look awesome, but there is a very noticeable gain in power throughout the power curve. Also sounds much better than stock. Worth every penny.

                  • Was this a gift?:
                  • No
                   
                  5.0

                  Best Buy

                  By Dirteater

                  from South Africa

                  Verified Buyer

                  Pros

                  • Excellent performance
                  • factory look
                  • Sporty Sound

                  Cons

                  • None at all

                  Best Uses

                  • Fun
                  • Racing
                  • Weekend warrior

                  Comments about FMF - Factory 4.1 RCT Slip-On (Yamaha):

                  If you using it for Racing or just a upgrade, you won't be sorry.

                  Displaying reviews 1-4

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