{"product_id":"fmf-racing-megabomb-exhaust-system-part-045643-for-off-road-motorcycles","title":"FMF Megabomb Exhaust System 045643 Off-Road Motorcycle","description":"\u003cdiv\u003e\n\u003ch1\u003eFMF Megabomb Stainless Steel Header 045643 — Off-Road Motorcycle Exhaust System\u003c\/h1\u003e\n\u003cp\u003eDelivering up to 3hp over stock and reducing noise by as much as 1.5dB, the FMF Megabomb header (045643) is engineered to boost power and refine throttle response on rugged off-road terrain. The Megabomb design optimizes exhaust flow, helping the engine rev more freely and improving acceleration across trail, dune, and hill-climb conditions.\u003c\/p\u003e\n\u003cp\u003eConstruction and performance details: stainless steel MegaBomb header in a single-header configuration. Designed to be used with FMF’s Megabomb system, it promotes a balanced exhaust pulse, producing longer header torque and a shorter header over-rev for improved holeshots and aggressive mid-range response. The result is a noticeable boost in output over stock while maintaining a distinctive, race-inspired sound.\u003c\/p\u003e\n\u003cp\u003eInstallation and use notes: this is a bolt-on upgrade that integrates with existing FMF components for off-road applications. It carries FMF’s closed-course use designation, reflecting its intended environment and performance focus. Durable construction and precise fit ensure reliable operation under demanding terrain and extended use.\u003c\/p\u003e\n\u003cp\u003ePart number 045643, Stainless MegaBomb Header — a purpose-built performance upgrade from FMF Racing designed to maximize exhaust flow, throttle response, and torque for off-road motorcycles.\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePart number: 045643\u003c\/li\u003e \u003cli\u003eConfiguration: Single header\u003c\/li\u003e \u003cli\u003eMaterial: Stainless steel\u003c\/li\u003e \u003cli\u003eApplication: Off-road motorcycles (FMF MegaBomb system)\u003c\/li\u003e \u003cli\u003eUse: Closed Course Use Only\u003c\/li\u003e \u003cli\u003eInstallation: Bolt-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cfont size=\"3\"\u003eThe science behind the Megabomb header may be our greatest engineering accomplishment to date. You can pay an engine builder thousands or bolt on a Megabomb for as much as a 3hp boost! Plus, the megabomb actually reduces noise levels by as much as 1.5dB. The megabomb header will have you pulling holeshots and dusting all the boys on the way up Competition Hill. Simply bolt it on and go faster.\u003c\/font\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cfont size=\"3\"\u003e\u003cbr\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont size=\"3\"\u003eIncreases output from stock motor as much as 3hp\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont size=\"3\"\u003eProduces long header torque and short header over-rev\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont size=\"3\"\u003eMade from Premium American Metal materials\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont size=\"3\"\u003ePatent pending design\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your motorcycle's performance with the FMF Racing Megabomb Exhaust System, part number 045643. Designed specifically for off-road riding, this exhaust system enhances power delivery and improves exhaust flow, resulting in better acceleration and overall engine efficiency. Crafted from high-quality materials, the Megabomb is built to withstand the rigors of demanding terrain and extended use. Its innovative design not only boosts performance but also contributes to a distinctive sound, making your ride more enjoyable and recognizable.\u003c\/p\u003e\n\u003cp\u003eThe FMF Racing Megabomb features a durable construction that ensures longevity and reliable operation in various riding conditions. Easy to install, it integrates seamlessly with your existing motorcycle setup, providing an immediate upgrade over stock exhaust options. Whether you're trail riding, motocross racing, or exploring rugged terrain, this exhaust system is a valuable addition to optimize your motorcycle's power and sound.\u003c\/p\u003e\n\u003cp\u003eEngineered with precision and attention to detail, the FMF Megabomb offers a performance-focused solution for riders seeking increased horsepower and torque. Its design promotes optimal exhaust flow, reducing back pressure and enhancing throttle response. Invest in the FMF Racing Megabomb for a significant performance boost and a more exhilarating riding experience.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eImproves engine power and torque for off-road motorcycles\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eEnhances exhaust flow to increase acceleration and throttle response\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eConstructed from high-quality, durable materials for extended use\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eDesigned for easy installation and seamless integration with existing setups\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eProduces a distinctive sound that complements performance upgrades\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"FMF RACING","offers":[{"title":"Default Title","offer_id":44637677092906,"sku":"357863","price":411.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/357863_1744898143_96c69ded-5e5f-4b24-a2ed-645ca617c71f.jpg?v=1785435709","url":"https:\/\/atticusgoods.com\/products\/fmf-racing-megabomb-exhaust-system-part-045643-for-off-road-motorcycles","provider":"Atticus Goods","version":"1.0","type":"link"}