Bilstein Rear Shocks

[vickiw106 1]

Can anyone shed any light of the following bilstein shocks?

 

I have put the part number into several search engines but it comes up with nothing relating to 205 rear tarmac spec shocks.

 

I am trying to identify if these are the group n/challenge shock or if they are the group a shocks

 

the numbers that are stamped on the casing are 2305be560318t0

 

Pics

 

 

 

 

Many thanks

Edited January 17, 2011 by vickiw106

[matt.f 16]

Off top of my head GP-N are B46 1038

Do they do GP-A?