FMF 041606 Stainless Steel MegaBomb Header Pipe Honda CRF250R 2022-2024

The FMF MegaBomb Header 041606 is a high-performance stainless steel exhaust header designed specifically for Honda CRF250R motorcycles (2022-2024). This innovative header pipe represents one of FMF's most significant engineering achievements, utilizing patented MegaBomb technology to deliver substantial power gains across the entire RPM range.

MegaBomb Technology:

The MegaBomb features a unique enlarged midsection that allows exhaust gases to expand, cool, and accelerate back up at higher velocity. This patented design delivers the low-end torque characteristics of a long header combined with the top-end over-rev of a short header—providing the best of both worlds in a single component.

Key Performance Features:

• Increases horsepower by up to 3hp when paired with an FMF slip-on muffler
• Enhanced low-end to mid-range power gains with broader mid-to-top end performance
• Produces long header torque with short header over-rev characteristics
• Reduces sound output by as much as 1.5dB compared to stock
• Works exceptionally well with restrictive mufflers
• Less susceptible to damage than traditional long headers
• Durable stainless steel construction for long-lasting performance

Application:

This header is ideal for motocross, supercross, and GNCC-style trail riding. Used by factory racing teams worldwide, the MegaBomb has proven itself as the premier header choice in professional supercross, motocross, Motocross of Nations, and Monster Energy Cup competitions. Designed for closed course use only.

Installation Note:

The MegaBomb header is designed to work with FMF slip-on mufflers for optimal performance and fitment. When upgrading from a stock system with an FMF muffler, simply remove the adapter sleeve that came with your muffler—the FMF header connects directly to FMF mufflers for a perfect, leak-free seal.