FMF MegaBomb Header — Kawasaki KX450 / KX450X 2024–2025

A header built around FMF's resonance chamber design, widening the powerband and setting up whatever slip-on you run behind it.

Fits: Kawasaki KX450 / KX450X 2024–2025.

Why riders pick it:

• Resonance chamber design broadens midrange power and pull out of corners
• Available in stainless or titanium construction depending on the kit
• Pairs perfectly with a Factory 4.1 or Q4 muffler for the full effect
• Direct bolt-on installation, no tuning required

⚠️ For closed-course competition / off-road use only — not legal for street use in some states. Confirm your local regulations.

Not sure it fits your bike? Send us your year and model and we'll confirm.