Akrapovic Slip-On Line Muffler for 2018-2023 Kawasaki Ninja 400 / 2019-2023 Z400 | Carbon Fiber | S-K4SO6-APC

The Akrapovič Slip-On Line muffler S-K4SO6-APC is a carbon-fibre slip-on exhaust for the 2018-2023 Kawasaki Ninja 400 and 2019-2023 Kawasaki Z400, replacing the oversized factory silencer with an Akrapovič carbon canister that bolts to the stock header.

This fits the Ninja 400 and Z400 only — not the Ninja 500 or Z500. Kawasaki replaced the Ninja 400 with the Ninja 500 for 2024. The bikes look nearly identical but the exhaust is not shared, so a 2024 or later Ninja 500 or Z500 will not accept this muffler.

This is the carbon version of the same slip-on we stock in titanium. The choice between them is mostly aesthetic and budget: carbon gives the woven finish and a slightly warmer note, titanium the metallic look and marginally better durability against scuffs. Both remove the same very large factory silencer, which on a machine this light is a significant percentage of total mass taken off the highest, most rearward point on the bike.

• Carbon-fibre muffler outer sleeve
• Bolt-on installation to the stock header — no other modification required
• Large weight saving as a percentage of a lightweight 400 cc machine
• Covers both the faired Ninja 400 and the naked Z400
• Can be paired with the Akrapovič E-K4R2 optional header to build a full system
• Also available in titanium as S-K4SO7-HRT
• Made in Slovenia by Akrapovič

Fits the 2018-2023 Kawasaki Ninja 400, 2018-2023 Kawasaki Ninja 400 ABS and 2019-2023 Kawasaki Z400. It does not fit the 2024-2026 Kawasaki Ninja 500 or Z500.