Get this:
Need to replace my rear Euro lenses, and looking for a reasonable price. So start checking the sites for what a set costs, check pelican - yeah @300 for the set. Then look up AA - 200!! Part number is sequential to the factory number and makes sense in terms of the numbers:
631 949 10 for the left (Porsche Part Number)
631 950 10 for the right (Porsche Part Number)
631 951 10 for the set (Porsche Part Number?)
EXCEPT - the set is aftermarket non-original. i dont mind aftermarket parts, but when i talked to them on the phone the acted like it was just the left and right in a set for a discount. SHIFTY!