Originally Posted by attolspider
Just replaced the spider blades and they are both 16" compared to the 20" old blades that were on there before which used to overlap the screen!
You may have bought a set meant for an ALFETTA, these are either 16'' or 17''.
The size for the Wipers on a 916 car is 21'' for one side and 19'' for the other, can't remember which one is which offhand.
I fitted the Wipex ones with the built in Washers to mine and they work very well, better than OEM. Having said that it seems that some people aren't keen on these.
Cost was about £25 a set, just Google ' Wipex ' and you'll find them.