FMF Megabomb Stainless Steel Header 045643 — Off-Road Motorcycle Exhaust System

Delivering 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.

Construction 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.

Installation 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.

Part 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.

• Part number: 045643
• Configuration: Single header
• Material: Stainless steel
• Application: Off-road motorcycles (FMF MegaBomb system)
• Use: Closed Course Use Only
• Installation: Bolt-on

The 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.

• Increases output from stock motor as much as 3hp
• Produces long header torque and short header over-rev
• Made from Premium American Metal materials
• Patent pending design

Upgrade 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.

The 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.

Engineered 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.

Features:

• Improves engine power and torque for off-road motorcycles

• Enhances exhaust flow to increase acceleration and throttle response

• Constructed from high-quality, durable materials for extended use

• Designed for easy installation and seamless integration with existing setups

• Produces a distinctive sound that complements performance upgrades