FMF Full Exhaust System Ti Factory 4.1 Muffler & Power Bomb 2012-2014 KTM 500 EXC
FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE.
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.
Factory 4.1 RCT SL Muffler:
The Factory 4.1RCT (Resonance Chamber Technology) muffler is all new from FMF Racing and incorporates the latest in resonance chamber technology. A Patented core shape lowers sound levels while maintaining maximum power output, and the five –sided canister shape increases internal volume allowing for the use of more sound absorbing material. The new chamber design of the muffler also allowed FMF to enhance and refine exhaust pressure through a series of internal chambers while meeting FIM 2M-Max sound test as well as the AMA 94dB standards.
- Available in Natural or Anodized Titanium muffler