Factory 4.1 Mini Full System Exhaust With Powerbomb

• Product Details

  Factory 4.1 Mini Full System Exhaust With Powerbomb.

  Factory 4.1 Mini:

  The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace-grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory.

  • Available in Natural Aluminum muffler with carbon end cap.
  • Massive Power gains throughout the RPM range.
  • Huge weight savings.
  • New RTS (Rapid Tuning System).
  • FMF uses the highest quality proprietary blend of alloy grade titanium made especially to their standards.

  PowerBomb:

  The redesigned PowerBomb is a four-stroke header that incorporates FMF's patented PowerBomb module at a precise location in the initial stage of the header. By positioning this "Bomb" at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system. Result is a flow increase of nearly 10%! The outer chamber in the PowerBomb allows the air to expand, cool and ramp back up at a higher velocity.

  • Additionally, the PowerBomb is a "pre-muffler" of sorts which helps to lower the bikes sound output by providing more sound absorbing surface area for the sound medium (exhaust gases).
  • On some models, you can choose between a moto or supercross version.
  • The supercross version is designed for more low to mid-range power where the moto version is focused in the mid to upper RPM range.

  Note:

  Closed Course use ONLY.

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• # Part Numbers

  Product Variant	Manufacturer Part #
  Aluminum / Stainless	041625
  Blue Anodized Titanium / Stainless	041626

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