The revision is in the form of a material change based on the original that is lighter

An experienced mechanic can have this up and running in a weekend

Everything here is Plug and Play

18 dBA louder than OEM

801 prevent stick-slip to a large extent

Genuine BMW E36 Sedan Class 2 Wing CPS The revision is in theGenuine BMW Class 2 wing for sedans. Top Part Number: 51712264035 NEW Base Part Number: 51712264034 There are two versions of this sedan wing. An early version without a recess in the base for the TuV sticker and a later version with the recess in the base for the sticker. This is the earlier version without. Overall the condition is good. All four mount studs on the used top are in good condition. The base is a new old stock Genuine BMW part. Install