Rang Adrian Flux to tell them about the modifications I've just fitted to my 2005 R53 MCS. Bit of a 'heart in mouth' moment!
Put on non-runflats, Milltek non-res exhaust, Orranje Stealth Cold Air Intake.
Added to my policy details - no problem, no questions, no charge.
Brilliant. Exactly as they said it would be when I decided to go with them. Well technically not WITH them VIA them. They are a broker. They placed my policy with an underwriter who is happy with moded cars and doesn't refuse to insure you or charge you additional premium.