Spark Exhaust Konix titanium slip-on silencer for Kawasaki Ninja 400 2018-2023 GKA1001T
2.6 k g
02 · Data & docs

The facts.

Technical data
BrandSpark Exhaust
Part NumberGKA1001T
TypeSlip-on silencer
Silencer MaterialTitanium
End-Cap MaterialTitanium
Weight (silencer only)2.6 kg (saving of 1.5 kg vs. stock 4.1 kg)
Sound LevelApprox. 105 dB at 5,500 rpm (dB killer removed)
dB KillerRemovable — included
OriginMade in Italy
FitmentKawasaki Ninja 400 (2018-2023)
DescriptionThe whole story▼

The Spark Exhaust Slip-On Konix for the Kawasaki Ninja 400 (2018-2023) is a road-legal, race-proven titanium silencer that sheds 1.5 kg from the stock system — dropping from 4.1 kg to just 2.6 kg — while delivering the kind of aggressive, free-breathing exhaust note that transforms how the Ninja 400 feels at every throttle opening. Hand-crafted in Italy, part number GKA1001T is built for riders who demand measurable gains without compromising on durability or finish quality.

Key Features

  • Titanium silencer body and titanium end-cap — exceptional heat resistance, corrosion protection and a purposeful track aesthetic in one package.
  • 1.5 kg weight saving (4.1 kg stock down to 2.6 kg) improves chassis dynamics, suspension response and overall agility.
  • Removable dB killer allows you to switch between compliant road use and open, unrestricted track configuration in minutes.
  • Approximately 105 dB at 5,500 rpm with the dB killer removed — a full, aggressive exhaust character that complements the Ninja 400's parallel-twin character.
  • Complete mounting kit and exhaust springs included; no additional hardware required for a straightforward bolt-on installation.
  • Made in Italy — every Spark Exhaust silencer is produced to the exacting standards that have made the brand a benchmark in the track-day and club-racing community.

Build Quality and Materials

Spark Exhaust specifies titanium for both the silencer canister and the outlet cap on the Konix. Titanium's superior strength-to-weight ratio means the canister walls can be kept thin — contributing directly to that 1.5 kg saving — while its high-temperature tolerance ensures the material maintains structural integrity and finish quality across repeated hard track sessions. The result is a silencer that looks as good at the end of a track day as it did at scrutineering.

Performance and Sound

The Konix slip-on is designed to optimise exhaust gas flow out of the Ninja 400's mid-pipe, improving throttle response and top-end breathing compared to the restrictive stock unit. Sound level is approximately 105 dB at 5,500 rpm with the dB killer removed. For riders seeking maximum performance gains, Spark Exhaust recommends pairing the Konix with a dedicated race map or a custom dyno tune to extract the full potential of the improved exhaust flow.

Fitment and Compatibility

The GKA1001T is a direct bolt-on slip-on silencer designed specifically for the following fitment:

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

It connects to the standard Ninja 400 mid-pipe without modification. All required springs and mounting hardware are included in the box.

Specifications

Brand Spark Exhaust
Part Number GKA1001T
Type Slip-on silencer
Silencer Material Titanium
End-Cap Material Titanium
Weight (silencer only) 2.6 kg (saving of 1.5 kg vs. stock 4.1 kg)
Sound Level Approx. 105 dB at 5,500 rpm (dB killer removed)
dB Killer Removable — included
Origin Made in Italy
Fitment Kawasaki Ninja 400 (2018-2023)
What's includedEverything in the box▼
  • 1x Spark Konix titanium slip-on silencer
  • 1x removable dB killer
  • Exhaust springs
  • Complete mounting kit
FitmentWhich bikes this fits▼
  • Kawasaki Ninja 400
07 · Support

Questions, one topic at a time.

Estimate your shipping

Get the real shipping cost for this item to your address — the same rates as checkout.

Pick your countrySame rates as checkout

Choose a destination and hit Estimate — we fetch the live rates for this item.

How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.