FMF 040073 - 040073 - FMF Powerbomb Stainless Header Pipe - Yamaha YZF250 2001-06, WRF250

Features: 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. NOTE: Will not pass 2025 FIM sound regulation.