Ya it seems to be no problem at all in the UK. And then I couldn't even get quoted here when I tried.

8 euro for declaring those mods is very good value. But then you just can't bet on all insurers being the same. Or that I would get the same quote for the exact same thing with the same insurer. There is zero consistency with them.

Then when you are declaring mods how far do you go? You could declare coilovers, brakes and a carbon airbox but then they might invalidate your claim for not telling them you had black side grilles or LED number plate bulbs fitted. I've done so many things to my car but to me most are so insignificant I wouldn't call them modifications. They'll do their best to get out of paying your claim anyway.