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FMF Megabomb Stainless Steel 4-Stroke Exhaust Header
Product info
- Item number
- 18220688
- Manufacturer number
- 044493
- Position
Elevate your motorcycle's performance with the FMF Megabomb 4-stroke header, a premium stainless steel exhaust component engineered to deliver significant power gains. This high-performance header is designed for serious riders seeking an edge on the track, optimizing exhaust flow for a broader, more potent powerband.
Description
The FMF Megabomb Stainless Steel 4-Stroke Exhaust Header is a revolutionary design that has redefined exhaust performance for 4-stroke machines. Its unique spherical chamber, or "Megabomb," acts as a pre-muffler, significantly boosting low-to-mid range power while broadening the overall powerband. This innovative design also helps to reduce sound output by up to 1.5 dB, allowing for a more aggressive yet compliant riding experience on closed courses. Crafted from durable stainless steel, this header is built to withstand the rigors of off-road and motocross racing, ensuring longevity and consistent performance. It's specifically engineered to integrate seamlessly with FMF silencers, forming a complete, high-performance exhaust system. While optimized for current racing standards, it's important to note its future compatibility with evolving FIM sound regulations. This header is designed for specific 4-stroke models, including the YZ250F from 2027 onwards, ensuring precise fitment and maximum output.
Features & Highlights
- Revolutionary Megabomb Design: Patented technology that significantly enhances low-to-mid range power, broadens the powerband, and reduces sound output compared to traditional headers.
- Durable Stainless Steel Construction: Built for extreme conditions, providing superior strength, corrosion resistance, and long-lasting performance on the track.
- Optimized for 4-Stroke Performance: Specifically tuned to maximize the output of 4-stroke engines, delivering a noticeable boost in throttle response and horsepower.
- Seamless FMF Silencer Integration: Engineered to perfectly match FMF silencers, ensuring optimal exhaust flow and a complete, high-performance system.
- Competition-Ready Design: Developed for closed course use, offering peak performance for racing and aggressive off-road riding.
Technical Specifications
- Material: Stainless Steel
- Product Type: Exhaust Header
- Engine Type: 4-Stroke
Important to Know
- This FMF Megabomb header is intended for closed course use only.
- Requires an FMF silencer for proper fitment and optimal performance.
- Please note: This product will not pass 2025 FIM sound regulations.
- Vendor part number
- 044493
- Width
- 1 mm
- Height
- 1 mm
- Length
- 1 mm
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