thanks for the replies,as I dont actually own an avant yet I wasnt to sure if it was something that could be changed easily or not. I agree i dont think i'd fancy pulling the roof lining off to change them. The reason I 'm asking is the car i've ordered comes with the black optic pack and i find it all a bit to plain so asked audi dealer if he could arrange the factory to fit chrome roof rails instead.he said he will try but cant guarantee that it will come with them,so i thought if it doesnt i'll just change them,but maybe not now!