The kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets is, without question, one of the most rewarding bolt-on performance upgrades you can make to your Z900RS Café — and once you understand exactly what it does and why it matters, it becomes very difficult to argue against fitting one. If you own a Kawasaki Z900RS Café from the 2022 or 2023 model year, this precision-engineered de-cat link pipe represents the single most impactful modification available to transform the sound, feel, and overall appearance of your machine. Lightweight, built from premium T304 stainless steel, and MOT passable in the UK when paired with a road-legal silencer, this is the upgrade your Café racer has genuinely been waiting for.
What Is the Kawasaki ZR900RS Cafe 2022′ – 23′ Stainless De-Cat Exhaust Pipe C/W Clamp & Shield Brackets?
The factory catalytic converter fitted to the Kawasaki Z900RS Café is, by any meaningful measure, one of the weakest elements of the stock setup. It is heavy, bulky, thermally inefficient, and — let’s not dress it up — it looks completely out of place tucked beneath the beautifully proportioned retro bodywork of the Café. The kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets removes that oversized, chrome-plated rectangular cat box entirely and replaces it with a clean, smooth-flowing CNC mandrel-bent 2-inch stainless link pipe that slots directly into position without any welding, fabrication, or specialist tooling whatsoever.
The standard catalytic converter tips the scales at a substantial 4.33 kg. Our aftermarket de-cat pipe weighs just 0.7 kg — a saving of 3.6 kg of dead, restrictive weight removed from underneath your bike in a matter of minutes. Less weight, significantly better exhaust gas flow, and sharper throttle response across the entire rev range. It really is that straightforward. Every unit is supplied complete with a quality clamp for a secure, rattle-free connection and the appropriate heat shield brackets to ensure everything sits safely and neatly in place once fitted.
Key Features of the Kawasaki ZR900RS Cafe 2022′ – 23′ Stainless De-Cat Exhaust Pipe C/W Clamp & Shield Brackets
- Premium T304 Stainless Steel Construction: Outstanding corrosion resistance and long-term durability under extreme heat and demanding road conditions — far outperforming mild steel alternatives that discolour and deteriorate rapidly.
- CNC Mandrel Bent Pipe: Precision CNC mandrel bending ensures a smooth, unrestricted bore from end to end, maximising exhaust gas flow and sharpening throttle response throughout the entire rev range.
- 2-Inch Diameter Link Pipe: Purpose-made to occupy exactly the same space your standard cat box previously sat, ensuring a clean, factory-quality fit every single time.
- Clamp Supplied: A quality clamp is included in the box so you can reconnect the pipe cleanly and confidently without any additional purchases required.
- Heat Shield Brackets Included: Everything you need for a tidy, professional finish comes supplied as standard — no hunting around for additional hardware.
- Genuine Bolt-On Fitment: No welding, no fabrication, and no specialist tools required. If you can use a socket set, you can fit this pipe.
- O2 Sensor Retained: The front downpipes retain the existing exhaust O2 sensor, so your fuelling and ECU management remain completely unaffected after installation.
- 3.6 kg Weight Saving: Removes over 3.6 kg compared to the standard catalytic converter unit — a meaningful reduction that you will genuinely feel on the road.
- Compatible with Standard or Aftermarket Silencers: Whether you are running the stock can or have already fitted a quality aftermarket performance silencer, this de-cat pipe works perfectly with either setup.
- MOT Passable in the UK: UK motorcycle MOT testing is conducted on noise, not emissions — meaning this de-cat pipe remains MOT passable when paired with a road-legal silencer.
Why Fit the Kawasaki ZR900RS Cafe 2022′ – 23′ Stainless De-Cat Exhaust Pipe C/W Clamp & Shield Brackets?
The benefits go considerably further than the numbers on a set of scales. Removing the restrictive cat box opens up the exhaust note in a deeply satisfying way, giving your Z900RS Café the deeper, more purposeful character that properly suits its retro-inspired styling and intent. The improvement in throttle response is immediately noticeable — particularly in the mid-range — and the bike simply feels lighter and more agile once those 3.6 kg have been stripped away from beneath the frame.
From a visual standpoint, the transformation is dramatic. That oversized, chrome-plated rectangular box is replaced by a sleek, polished stainless link pipe that sits cleanly and purposefully under the machine. Whether you are running the stock can or a quality aftermarket performance silencer, the entire underside of the motorcycle looks significantly cleaner and more considered as a result. The retro café racer aesthetic your Z900RS Café was designed around finally gets the purposeful, uncluttered underbelly to match.
T304 stainless steel is the material of choice for serious performance pipework, and for very good reason. It offers excellent resistance to the extreme heat and corrosive gases that any performance exhaust must withstand over its lifetime, and it holds its finish beautifully over years of use — far outperforming mild steel alternatives that corrode, discolour, and deteriorate under the same conditions. The kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets is a component engineered to last the life of the bike. If you ride a retro-styled machine and take pride in how it looks as well as how it performs, this is the upgrade that delivers on both counts simultaneously.
It is also worth noting that you are not alone in pursuing this kind of modification. Riders across a wide range of platforms are making exactly the same choice — whether that is on the Triumph 765 Moto 2 De-Cat pipe or comparable fitments for other performance machines. The logic is the same everywhere: remove the restriction, reduce the weight, and let the bike breathe the way it was always meant to.
Fitment Guide for the Kawasaki ZR900RS Cafe 2022′ – 23′ Stainless De-Cat Exhaust Pipe C/W Clamp & Shield Brackets
It is absolutely essential that you confirm your model year and pipe diameter before ordering. The kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets is specifically engineered to fit the 2022 and 2023 Kawasaki Z900RS Café models only. It will not fit the earlier 2018–2021 Z900RS models, which use a different mid-section specification with a different outlet diameter. Please do not assume compatibility based on model name alone — the internal dimensions changed significantly between generations.
To confirm fitment before ordering, measure the outer diameter of your existing mid-pipe or cat box outlet:
- 2022–2023 Z900RS Café: Outer diameter measures approximately Ø73mm — this is the correct application for this listing.
- Non-Café or earlier Z900 variant: Outer diameter is approximately Ø80mm — this product will not fit that application.
If you are at all unsure about your model year or pipe diameter, please measure carefully before purchasing. Alternatively, get in touch with us here at Max Torque Cans and we will happily confirm compatibility for you before you commit to anything.
Installation Notes
Installation is genuinely straightforward for anyone with basic mechanical ability and a standard socket set. Remove the standard cat box by undoing the retaining clamps and brackets, slide the new de-cat link pipe into position, refit the supplied clamp and heat shield brackets, and you are done. The O2 sensor remains in situ in the front downpipes, so there is no need to relocate or cap anything off. Your stock can or aftermarket silencer reconnects exactly as it did previously — just without that heavy, restrictive cat box sitting in the middle of it all. Most riders report completing the installation comfortably within an hour, including a coffee break.
We would always recommend allowing the bike to complete a full warm-up cycle after installation before riding enthusiastically, giving the new pipework time to settle and any protective coating to fully cure. Beyond that, the kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets requires no ongoing maintenance beyond an occasional visual inspection of the clamp and joints.
Road Legality in the UK
For UK riders, the road legality question is something we are asked about regularly. Here in Britain, motorcycle MOT testing assesses noise levels — it does not measure exhaust emissions. This means that as long as your silencer passes the noise test, fitting the kawasaki zr900rs cafe 2022′ – 23′ stainless de-cat exhaust pipe c/w clamp & shield brackets will not cause your bike to fail its
3D View
Please click on the exhaust below to see the 3D model
Road Legal / Race
All our Road Legal exhausts come with a Road Legal Baffle / Decibel Killer + BSAU ( British Road-Legal ) markings.
All our RACE exhausts do not come with a Road Legal Baffle / Decibel Killer + do not have any BSAU ( British Road-Legal ) markings. and are marked NOT FOR ROAD USE
2024 Road legal exhaust statement:
At Max Torque Cans we prioritise safety and compliance in the world of motorcycle exhausts. Our commitment to adhering to regulations is evident in our product design and labelling, and hence with new updates from ACEM, DVSA and DfT, we are ensuring our exhaust systems are compliant with new and upcoming legislation and regulations. Specifically, two changes detailed below:
Road Legal Exhausts: Our road legal exhausts will have the BSAU stamped markings and be crafted with non-removable baffles, aligning seamlessly with the standards set by ACEM (European Association of Motorcycle Manufacturers). These baffles are an integral part of our design to ensure that your motorcycle exhaust complies with road regulations, providing you with a legal and enjoyable riding experience.
Race Exhausts and Silencers: For those seeking an exhilarating experience on the track, our race exhausts are engineered to deliver optimal performance. Clearly marked with type approval markings “Not for Road Use” etched into the side, these exhausts are specifically designed for racing applications. This distinction is in line with DVSA policy, ensuring that our race exhausts are suitable for track use, meeting the highest performance standards without compromising on safety.




















