Just installed the M-contours with 235/40R17's (purchased from you guys) onto a 97 328i Sedan Sport Package. I would like to lower the car for appearance purposes (daily commuter)...which of the H&R springs should I get to maintain comfort yet have that lowered look?? The OE Sport or the Sport?? Also, can I keep the stock shocks or would I have to upgrade those as well?? Thanks in advance to those that respond!!