Currently I have a standard (ish) 998, but in a year or so that's going to change.

What I'm wondering is, where do people go for their insurance when they have lovely non-standard forced induction engines? And how does it work? I guess you have to give a list of the spec of your engine and the company comes up with a figure?
Just interested to know really. I guess I'll find out when I've finished my lovely non-standard forced induction engine, but it would be good to know beforehand.
Ta very much,
Nick