Spark Exhaust Full System Titanium Konix Kawasaki Ninja 400 (2018-2023) GKA8824T

Full-titanium construction from header to silencer end cap — the Spark Exhaust Konix complete system for the Kawasaki Ninja 400 (2018-2023) strips 3.1 kg from the stock exhaust weight, dropping from 6.6 kg down to just 3.5 kg, without sacrificing a single gram of durability. Designed and hand-assembled in Italy, this is a purpose-built performance exhaust for riders who demand the highest standards of material quality alongside measurable gains on road and track alike.

Key Features

• Full titanium construction throughout — header, silencer body and end cap — delivering exceptional strength-to-weight ratio and outstanding heat resistance in a single cohesive system.
• Weight saving of 3.1 kg over the stock exhaust (from 6.6 kg to 3.5 kg), noticeably improving chassis dynamics, handling balance and acceleration.
• Removable db-killer allows you to choose between a track-ready 107 dB at 5,500 rpm and a more measured 99 dB at 5,500 rpm for road use.
• Optimised exhaust gas flow across the rev range improves throttle response and overall engine performance compared to the OEM system.
• Made in Italy — Spark's Italian craftsmanship ensures precise fitment, consistent weld quality and long-term durability under sustained high-temperature loads.
• Complete mounting kit included: all exhaust springs and the bracket for attaching the silencer to the original rear subframe, so no additional hardware is needed.

Build Quality and Materials

What sets the Konix apart from lesser aftermarket alternatives is the uncompromising choice of material at every single stage. The header is formed from titanium tube, carrying the inherent resistance to discolouration, corrosion and thermal fatigue that makes titanium the preferred choice in MotoGP paddocks. The Konix silencer body continues that commitment — no steel or aluminium shortcut — and the titanium end cap completes the picture with a robust, purposeful finish that holds its structural integrity long after stainless steel alternatives have begun to show their age.

The result is a system that feels as premium as it looks. The controlled blue-gold heat tint that develops naturally on the titanium header is a functional by-product of proper material choice, not an aesthetic afterthought. Every joint is produced to the dimensional tolerances expected of a Made in Italy product, and the bracket hardware ensures a clean, rattle-free installation on the stock Ninja 400 subframe.

Performance and Sound

Removing 3.1 kg from a 395 cc parallel-twin platform is a genuinely significant chassis modification, not just a cosmetic upgrade. That mass reduction, combined with the optimised header geometry, sharpens the Ninja 400's already-responsive throttle and reduces rotational inertia. The Konix silencer produces 107 dB at 5,500 rpm with the db-killer removed — an assertive, sporting note that carries authority on circuit. Insert the removable db-killer and the measured output drops to approximately 99 dB at 5,500 rpm, a practical compromise for everyday road riding. For the best possible power output, Spark recommends pairing this system with a race map or a custom dyno tune to fully exploit the new exhaust flow characteristics.

Fitment and Compatibility

This system is a direct replacement for the complete stock exhaust on the following motorcycle:

• Kawasaki Ninja 400 — model years 2018, 2019, 2020, 2021, 2022, 2023

Specifications