Will this unit work on an Ariel Atom 2? And how long does it take to install? And is it literally just "drop on" in the sense that you can simply take off the old display, put on the new one and go? thanks!

Hi, yes it's made to replace all the Atom 2 and 3 models that use the SPA dash. It takes about half an hour to install and is indeed a plug'n'play solution. No wires need to be cut and all the adaptor cables to convert your existing wiring are included.

At any point you can remove the unit and revert back to the old unit should you wish to do so.