Exhausts Kawasaki Ninja 650 2017-2020

The Kawasaki Ninja 650 was born in 2017 as the direct successor to the ER-6f, seizing the opportunity of the Euro 4 update for a more thorough renewal. Same 649cc parallel-twin engine, but on a completely new platform: redesigned steel tubular frame, 41mm Showa upside-down fork, slipper clutch and a significantly reduced weight compared to the previous generation. The fairing takes visual inspiration from higher-range Ninja models and radically changes the perceived character of the bike: sportier in appearance, more committed in riding position, while remaining accessible and manageable in every situation. A mid-displacement sport-tourer that can do everything without demanding too much from the rider. For those looking to complete it with a suitable exhaust, find the full range of exhausts for Kawasaki Ninja 650, divided by model year.

The systems in this category are full exhaust systems for the Kawasaki Ninja 650 2017-2020: they replace the entire gas path from the engine outlet to the final muffler, headers included. This is not about adding a muffler to what is already there — everything is removed and reassembled from scratch. The fitting kit is included and the mounting points are compatible with the original geometry of the bike. The under-engine position with lateral outlet requires care during installation: we recommend entrusting the work to a qualified mechanic for a clean and safe result.

The difference compared to the original system is direct and noticeable. Weight drops appreciably and on a motorcycle that places a strong emphasis on agility and responsive handling, lightening the under-engine area translates into more reactive and lively behaviour. Managing gas flow along the entire exhaust path can contribute to a more linear throttle response, with a feeling of greater readiness that is particularly noticeable in the mid-rev range, where the parallel-twin expresses its best. The reduction in back pressure can favour a smoother and more consistent power delivery. On the acoustic side, the tone gains body and presence: more defined, more coherent with the sporting character of the bike, without any forced transformation.

Every system is produced through handcrafted manufacturing in Lombardy, in the province of Bergamo. Each unit is assembled to order, with internal quality control at every stage of the process. Direct from the manufacturer eliminates any intermediary between those who build the exhaust and those who receive it, with everything that implies in terms of direct support and product traceability.

The catalytic converter is available as an option, selectable from the drop-down menu on the product page. The catalysed version is suitable for everyday road use in compliance with current regulations. Those who choose the non-catalysed version should be aware that power delivery may not be optimal and that an ECU remap will likely be necessary to get the best out of the system. The non-catalysed version is intended for track use or contexts where road compliance is not required, within the limits permitted by local regulations.

The dB killer is included as standard on all systems to ensure acoustic compliance. It cannot officially be removed without invalidating the homologation. For those who want a further reduction in sound volume, the No-Noise version is available, with an internally welded filter that cuts decibels more significantly without meaningfully compromising the overall performance of the system. Where available, it is selectable from the drop-down menu on the product page.

After fitting, the ECU normally goes through an adaptation phase. Minor variations in power delivery during the first rides are a physiological process that resolves on its own. In the vast majority of cases no remapping is required.

Each system goes into production when the order is placed. Updated production times are always visible at checkout before confirming the purchase. The tracking code is sent automatically once the shipment leaves.

For questions about compatibility, differences between variants or technical fitting details, consult the FAQ section or contact us via the Contact page or chat. We respond directly and without runaround.

In the product list below you will find the full range available for the Kawasaki Ninja 650 2017-2020. The variants differ mainly in the shape, material and finish of the muffler. The catalytic converter and dB killer No-Noise, where available, are configured from the drop-down menu on the product page. Go to the page of the model you are interested in to see the photos, read the technical specifications and set up your exhaust system.