My insurance co. (royal and sun alliance) took time out from picking peanuts out of poo to request an explanation etc after my claim recently (A3 was written off by my 17 y.o son in December) regarding certain 'modifications' to the car, namely, - 17" RS4 alloys, Stainless Exhaust and an F.S.E CB26P Valve, (needless to say they are claiming that these mods are 'performance - enhancing' and my solicitor is on it as we speak....I digress...The car was fitted with EBC grooved and vented discs all round with Greenstuff pads (not Brembos but a brake upgrade non the less) and these have NEVER been mentioned. Proceed with Confidence !