I've never taken a Europa apart FFF so yours may well be completely different, but the systems I'm used to use a standard "K&N" type intake filter. Around that is a loose spiral of formed metal pipe within which coolant is passed. Around all of that is a sort of mushroom shaped cowling making sure that the intake air largely passes around this "radiator spiral" to warm it on the way into the engine.
Picture below, which is of the installation on a 912 fitted to a Pegasus Quantum.
G
