The FMF M-Bomb SX Header, manufacturer part number 042400 and vendor part number 79-042400X, is a high-performance exhaust header designed for Kawasaki motocross and cross-country models. Built from extremely lightweight military-grade titanium, this header helps reduce exhaust-system weight while delivering substantial power increases throughout the usable RPM range. Its M-Bomb design represents the next evolution in FMF PowerBomb development, providing responsive performance for riders seeking improved acceleration and engine output.
Feature: Lightweight titanium construction helps reduce overall exhaust weight.
Feature: M-Bomb SX design is engineered for substantial power gains across the powerband.
Feature: FMF performance engineering supports strong throttle response and motocross-ready output.
Feature: Designed for direct fitment on select Kawasaki KX450F and KX450X applications.
The FMF M-Bomb SX Header fits 2024, 2025, and 2026 Kawasaki KX450F and KX450X models. Confirm your motorcycle's year and model before ordering to ensure proper application. This FMF header is intended for riders who want a lightweight, competition-focused exhaust component with dependable fitment and performance-oriented construction. Brand: FMF. Manufacturer part number: 042400. Vendor part number: 79-042400X.
Features:
- Lightweight military-grade titanium construction
- M-Bomb SX design for substantial power increases throughout the powerband
- Performance-focused FMF exhaust header for improved throttle response
- Fits 2024, 2025, and 2026 Kawasaki KX450F and KX450X models
- Manufacturer part number 042400; vendor part number 79-042400X
Fitment:
2024 Kawasaki KX450F
2024 Kawasaki KX450X
2025 Kawasaki KX450F
2025 Kawasaki KX450X
2026 Kawasaki KX450F
2026 Kawasaki KX450X