Akrapovic Evolution Line Exhaust System — Kawasaki KX450 / KX450X

A complete header-to-muffler system engineered as one unit — meaningful weight savings and a broader spread of usable power.

Fits: Kawasaki KX450 / KX450X.

Why riders pick it:

• Handcrafted lightweight construction throughout for a significant weight cut versus stock
• Header and muffler engineered together for real gains through the mid-to-top end
• Distinctive Akrapovic race-bred sound
• Plug-and-play installation, remapping recommended for best results

⚠️ 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.