Are the shockers the same on a A4 AVANT S-LINE 130 (54 REG) and AUDI A4 130 SALOON (52 REG)

Ive had my 2002 (b6) lowerd and fitted the front shocks off the above (a4 avant) fitted, they seem ok,but the car sits slightly lower at the front than the back.

Ive not got round to having the back fitted yet,the vw/audi specialist(who fitted them) assured me the shockers from the avant are the same all round,i wanted to know if they have anything to do with ride height?

Ive rang dealers today they give me part numbers for the cars as: 8E0 413 031 CC AND 8E0 413 031 CK They said one is the sport suspension one is not........whats the difference?