Hi, just checking something here, hoping someone can confirm: I have my eye on a 2005 Sportback S-line that has had the rear valance replaced for an S3 one with the S3 diffusor. It's a pre-facelift diffusor (3 door) however, and I quite like the look of the post-facelift (Sportback) diffusor. These are interchangeable, right? Just a matter of unclipping the old one, and clipping on the new one, I thought. Can anybody please confirm?