Yes it will because it will be classed as a modification. I wouldnt like to say how much your premium would rise by
I dont know if you can insure the car as a works car because most insurance companies (like the one I work) only do qoutes for 'standard' cars. Some insurance companies even class salt, pepper & chili packs as a mod
Tell your INSURANCE companies or they wont pay out
I've had a few quotes and so far it doens't look too bad. Of course I need to do it closer to delivery date for a final idea. It seems to vary between those that ask how much the power has gone up by (in % terms = around 14% I think) to those that don't seem to care - and just record the details as it still a 1.6. I think it is essential to get full details written into your policy to ensure there would not be any problems should you claim.
I'll let you know when I get a full quote. I figure it HAS to be insured and so if that is what I want then I just have to go with the Flow(ki).