Ninja 400 Slip On Exhaust 2024. This system keeps the stock. However there are good and bad ones though.for example brands like akrapovic,.

Change the nature of your bike by adding more power, improved performance in comparison with a kawasaki ninja 400 equipped with standard exhaust system, and the unique akrapovič. Gp series slip on exhaust, mounting hardware, street baffle, motogp style exit insert