Evotech Kawasaki Z400 Tail Tidy (2019+) Irongate: Company Profile, Data Center Locations. Evotech Performance have designed and manufactured a tail tidy for your Z400. No modifications to your bike are required. Secured in place using existing mounting points. CNC machined from lightweight aircraft grade aluminium. Powder coated black for longevity. Evotech Performance have supplied a new LED number plate light. The standard indicators have been retained. No modifications to the wiring are required, simply plug and play. All required fixings are supplied in the kit. Easy to follow pictorial instructions are available for download. We are proud of our products and are so confident in our quality and value that we operate a 'no quibble' returns policy if you are not completely satisfied.