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HSV, SS and calais are exactly the same
Hi.
If you can get a set of "projector" lamps (VZ SS, Berlina, Calais, not sure could be S as well...) you can do a mod where original H9 hi-beam globes, replace the originals in the H11 sockets.
This results in a "brighter" light, reportedly - I have not done this myself.
see here....
low beam upgrade
Hope this helps..
Laurie