Hi guys, new to the BMW scene, I recently brought a 530d e60/61 2006 530d, I've read at the notorious swirl flap problems, I'm just wondering what size they are, as I've found you can buy a blanking kit for them? There is a choice, (22mm/33mm) is it hard to find out what size they are? And how easy are they to fit?
Thanks for your help in advance
Aaron