Kawasaki Ninja 400 and Z400 Exhaust Upgrades: Best Aftermarket Options

by Euro Motards Performance

The Kawasaki Ninja 400 (and its naked counterpart, the Z400) is the best small-displacement performance bike available. The 399cc parallel-twin delivers impressive midrange, and the parallel-twin exhaust note — with the right aftermarket muffler — has a satisfying depth that belies the engine size. For new riders and experienced riders on restricted licences, the Ninja 400 is a genuinely rewarding platform for aftermarket upgrades.

Ninja 400 vs Z400: Shared Platform

The Ninja 400 and Z400 share the same engine, frame, and exhaust routing. Exhaust systems for the Ninja 400 fit the Z400 directly, and vice versa. Both are 2018+ only (no earlier generation shares this engine).

Best Exhaust Options for the Ninja 400 / Z400

GPR Furore Carbon Evo4 — Most Popular Choice

The GPR Furore Carbon for the Ninja 400 is the most popular slip-on in our catalogue for this model. The parallel-twin's exhaust note through the Furore is deep and resonant in a way the stock system never achieves. EC homologated, carbon-finish canister, genuine weight saving.

The Furore is particularly effective on the Ninja 400 because the stock exhaust is very restrictive at the muffler stage — a slip-on produces a more pronounced improvement here than on some larger bikes.

GPR Albus Evo4

The Albus gives a rounder, less aggressive sound than the Furore. Best for riders who will predominantly use the bike for daily commuting and want sound improvement without excessive volume.

MassMoto

Budget-friendly stainless option for riders who want the weight and sound improvement at entry-level pricing. Good build quality for everyday use.

Seat Cover

The Ninja 400 stock seat is narrow and covered in plain vinyl that offers poor grip. A replacement seat cover from Top Sellerie or TPZ Italia in anti-slip suede dramatically improves rider stability — particularly relevant for newer riders. Browse the seating range.

Crash Protection

For new riders, frame sliders on the Ninja 400 are a practical investment. The engine casings are in a vulnerable position and the bike is at a learning-curve stage where drops are possible. See our crash protection range for Ninja 400 compatible options.

Related Guides

Browse the full exhaust range at Euro Motards. Email sales@euromotards.com with your Ninja 400 or Z400 year to confirm fitment.

Shop related collections: Kawasaki Exhaust Systems • Kawasaki Seat Covers • Kawasaki Suspension & Steering

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