{"product_id":"fmf-racing-yamaha-yz250f-wr250f-2003-2006-power-bomb-header-system-part-044195","title":"FMF Racing Yamaha YZ250F \u0026 WR250F 2003-2006 Power Bomb Header System Part 044195","description":"A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the \"Bomb\" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a \"pre-muffler\" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.\n\u003cp\u003eEnhance your Yamaha YZ250F or WR250F with the FMF Racing Power Bomb Header System designed specifically for models from 2003 to 2006. This high-performance 4-stroke header features FMF's patented Power Bomb module strategically placed in the initial stage of the header. By positioning the Power Bomb at this critical point, the system increases exhaust flow efficiency by nearly 10%, resulting in improved throttle response and overall engine performance. The perforated core surface allows sound waves to escape into the absorbing material, which helps reduce noise levels while maintaining optimal exhaust flow. This design acts as a pre-muffler, providing additional sound dampening and contributing to quieter operation without sacrificing power. Built with durable materials and engineered for precise fitment, this header system ensures seamless installation and long-lasting performance. The system is compliant with EPA standards and ready to install on your Yamaha motocross or off-road bike, making it an ideal upgrade for competitive riders and enthusiasts seeking enhanced power and sound management.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003ePatented Power Bomb module positioned in the initial header stage for increased exhaust flow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eNearly 10% improvement in exhaust flow efficiency for better engine performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePerforated core surface facilitates sound absorption and quieter operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned as a pre-muffler to reduce noise output while maintaining airflow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDurable construction for long-lasting performance and precise fitment\u003c\/li\u003e\u003c\/ul\u003e","brand":"FMF Racing","offers":[{"title":"Default Title","offer_id":47978375348482,"sku":"686923","price":407.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/3401\/7026\/files\/178c55cabfd458bde7afdb6f89cebd0c_8a899289-1e5a-49e1-8623-7d7f18b84878.jpg?v=1781160536","url":"https:\/\/teamkustom.shop\/products\/fmf-racing-yamaha-yz250f-wr250f-2003-2006-power-bomb-header-system-part-044195","provider":"Teamkustom","version":"1.0","type":"link"}