Hi ive got the old shape front bumper on my a3 and wish to either get an s3 bumper or the s-line front bumper the ones with the big grills. Do i need anything else or will it be a case of just changing the front bumper. I am under the impression that up untill 2008 the wings, headlights and bonnet are all the same and the bumper should be a straight swap. If anyone could shed me any light that would be great asap as im looking to get a bumper hopefully this weekend if all goes well. Thanks pete.