" The originals (white coloured) are weak & have been superceded by updated (red) ones."
Other way around actually - the originals are red. You don't have to buy the whole arm. I have a contact to just get the plastic cups, about $40 for the pair if I remember correctly. Pm me if you want the contact info. I'll look it up when I get home from work.
next pic:
Boxster with some guy's lunch jammed under the clamshell 