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--- Dual CRF250 Exhausts DO NOT Include Mid-Pipes ---

FMF - Factory 4.1 Slip-On Muffler (Honda)

Product Code: fmf-factory-4-1-slip-on-honda
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COMES WITH 94dB Insert

FMF - Factory 4.1 Slip-On Silencer

 

The Factory 4.1 system was derived from our successful Factory 4. We developed a completely new system with an ALL NEW muffler design. The Factory 4.1 oval muffler is constructed from military grade titanium utilizing an angle cut end cap and offered in either a natural or anodized blue finish. The performance characteristics start with a formed tapered inlet leading into the muffler. The oval shape combined with the tapered inlet allows the muffler to be routed further forward without interfering with the frame, subframe, shock, rear wheel or brake. Our Factory Forward Engineering lowers and centralizes the machines center of gravity for improved handling without sacrificing silencer volume and durability. With it's new formed end cap, the muffler is less susceptible to damage. The modular exhaust port flange transmits less vibration reducing tension on the system. The all new angle cut end cap offers versatility and tunability with the optional Power Rings and Rev Tubes to alter power delivery. There is also a optional removable spark arrestor module for off-road applications. This slip on contains the muffler and mid pipe.

REVIEW SNAPSHOT®

by PowerReviews
FMF - Factory 4.1 Slip-On Muffler (Honda)
 
4.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

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    (1)

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Reviewed by 2 customers

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4.0

Great item

By Jughead

from Orange, VA

Verified Reviewer

Pros

    Cons

      Best Uses

        Comments about FMF - Factory 4.1 Slip-On Muffler (Honda):

        This item and the header were purchased for my Grandson, Christopher. He is really excited about the way it looks on his bike. Getting anxious to start racing again.

        • Was this a gift?:
        • Yes
         
        5.0

        FMF is the only Pipe.

        By Supermx

        from Chicago,IL

        Verified Reviewer

        Pros

        • Light
        • Power

        Cons

          Best Uses

          • Looks
          • Racer
          • Weekend warrior

          Comments about FMF - Factory 4.1 Slip-On Muffler (Honda):

          Fmf is the only way to go! Lots of power added! I recommend the mega bomb header too.

          • Was this a gift?:
          • No

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