Utilize FMF's patented module precisely located at the initial stage of the header for specific applications 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 Available in stainless steel for strength combined with light weight, or in titanium for even greater weight savings Select applications available in SX version that is designed for more low to mid-range power and an MX version that is focused in the mid-to-upper rpm range. HEADER S/S PBMB CRF125F