Akrapovic Slip-On Line Muffler for 2017-2019 Kawasaki Z900 | Titanium | S-K9SO4-ASZT

The Akrapovič Slip-On Line muffler S-K9SO4-ASZT is a titanium slip-on exhaust for the 2017-2019 Kawasaki Z900, replacing the bulky factory silencer with a compact Akrapovič titanium canister that bolts to the stock header.

This fits the first-generation Z900 only, 2017 through 2019. Kawasaki substantially revised the Z900 for 2020 with a new frame, new bodywork and a revised exhaust, and revised it again for 2025. Akrapovič builds a different muffler for each generation. If your Z900 is a 2020 or later bike, this is the wrong part — check the model year before ordering, because the three generations look similar in photographs but do not share exhaust parts.

The original Z900 is one of the best-value litre-class nakeds Kawasaki has built, and the stock exhaust is the most obvious place it shows its price point: a large, heavy stainless can sized for noise compliance. The titanium Akrapovič replacement takes significant weight off the back of the bike, tightens up the visual line under the tail, and lets the inline four produce the hard induction and exhaust note the stock system muffles almost entirely.

• Titanium muffler construction
• Bolt-on installation to the stock header — no other modification required
• Substantially lighter than the factory stainless silencer
• Akrapovič Slip-On Line — the first stage of the Akrapovič system for this bike
• Can be paired with an Akrapovič optional header to build a full system
• Specific to the 2017-2019 first-generation Z900
• Made in Slovenia by Akrapovič

Fits the 2017-2019 Kawasaki Z900. It does not fit the 2020-2024 Z900, the 2025-2026 Z900, or the Z900RS — Akrapovič builds separate mufflers for each of those.