- Utilize FMF's patented module precisely located at the initial stage of the header
- Position "Bomb" increases performance; horsepower is increased as much as 10%
- Act as "pre-muffler" helping to lower the decibel output
- The expansion and contraction of exhaust sonics through the system causes increased flow
- Not for use with stock muffler.
- FITS - 2005-2008 Honda CRF450X, 2004-2008 Honda CRF450R