Thanks to you all for your advice as I only use the car for social and pleasure use I have taken note and will be replacing them with standard disc’s and pads .
Good afternoon I own a 2009 A6 C6 2.8 estate and I want to replace the disc’s and pads all round as I have slight warping on my front ones , what I would like advise on is whether to replace them with upgraded ones ie drilled and grooved ones as they are twice the price and I don’t know if they are worth buying , thanks for any advice you can offer