LeoVince GP Corsa EVO Carbon Fiber Slip-On Muffler | Kawasaki Ninja 400 / Z400 2018-2023, Ninja 500 / Z500 2024-2026 | CARB Replacement Part | 3389EU

The LeoVince GP Corsa EVO is a carbon fibre slip-on muffler for the 2018-2023 Kawasaki Ninja 400 and Z400 and the 2024-2026 Kawasaki Ninja 500 and Z500, built with a two-layer pre-preg full carbon sleeve, a technopolymer end cap, an AISI 304 stainless steel fastening strap with a rubber damper and MIG-welded construction.

The "Ninja 500" here is the 2024-onward parallel twin that replaced the Ninja 400 — not the 1990s EX500. Kawasaki reused the name after a long gap, and the two machines have nothing in common. This part fits the current 451cc bike and does not fit the old EX500, ER-5 or any 1990s Ninja 500.

GP Corsa EVO is the line LeoVince draws most directly from its MotoGP work. The sleeve is two-layer pre-preg, meaning the resin is already impregnated in the cloth and cured under heat and pressure rather than laid up wet — a consistent resin-to-fibre ratio and a weave that stays flat rather than showing print-through as it ages.

The end cap is technopolymer rather than metal or carbon. That is a deliberate choice on a small bike: it is lighter than an alloy cap, it does not discolour with heat the way a painted one does, and it absorbs the knocks that a canister low on a lightweight machine tends to collect. The stainless strap carries a rubber damper to isolate the canister from vibration.

Choosing between the LeoVince options for this bike: this is the carbon GP Corsa EVO with the technopolymer cap. Part 3389U is the GP Corsa — the same carbon sleeve with a slash-cut end cap and a plain stainless strap, for slightly less. If you would rather have steel than carbon, the LV-10 comes in bare stainless (15218U) and ceramic black (15218BU).

• Slip-on muffler — retains the stock header, no ECU remap required
• Two-layer pre-preg full carbon fibre sleeve
• Technopolymer end cap
• AISI 304 stainless steel fastening strap with rubber damper
• Alloy LeoVince logo
• MIG-welded construction
• Made in Europe
• LeoVince part number 3389EU

Fits the 2018-2023 Kawasaki Ninja 400, 2019-2023 Kawasaki Z400, 2024-2026 Kawasaki Ninja 500 and SE, and 2024-2026 Kawasaki Z500 and SE. LeoVince classifies this part as a California CARB replacement part, which applies only while the original catalytic converter is left unmodified and no ECU or sensor changes are made.