Geez, the shocks are pretty affordable.
Front sport shocks: https://www.rockauto.com/en/moreinfo.ph ... 1lIwkDqTdD
$100/ea
OEM is a bit more pricey...
https://www.mercedesbenzpartsshop.com/o ... IwLTIxLTMw
Rockauto implies the rear shocks were the same for either suspension (if we believe that - I can verify with EPC).
https://www.rockauto.com/en/moreinfo.ph ... 1lIwkDqTdD
$60/ea!!
OEM also pricey: https://www.mercedesbenzpartsshop.com/o ... I2LTE2LTAw
The catalog makes it seem like the OEM rear shocks are different for the sport suspension though. The Rockauto catalog is just claiming they offer one shock that is compatible with both. Which is lame.
If you really want it dialed there is a B6 or B8 option. The B8 honestly is really a track only type setup. B6 is a very firm option that can work for the street.
The B6 front is $272. And they only have 1 rear in stock @ $115/ea.
The rest of the front suspension (stock replacement stuff) is also incredibly cheap.