Hello people recently bought S3 and gettin a service done soon down A.V.I.T in slough. I want to put a panel filter on? which make is best? Thinking of a Forge recirc valve aswell but unsure if it already has one? anyone no how I can find out? and does anyone knoe how big the discs are on the Brembo gt upgrades are need pads and discs!! Any help would be greatly appreciated. Cheers!!!