Kawasaki

Kawasaki Ninja 400 exhaust sound

399cc parallel-twin

Common sound goals

Owners chase a raspier, sportier note and shed weight; the small twin responds well to a slip-on.

Slip-on vs full system

Slip-on is the sweet spot. A full system is mostly for track use and weight.

Drone / loudness risk

Low to moderate at cruise.

Tune requirement

Optional on a slip-on; consider it with a full system.

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