I have had great service and a lot of free shipping from these guys.

http://www.bestforeignparts.com/epcvsoapimc.epc?cookieID=1PH16DLIS1PH16EVZL&drillid=8&subcatid=801043@@Rear+Shock+Absorber&clientid=bestforeignparts.com

If it were me I would buy the Heavy Duty but you are very safe with the
regular shock. Changing these things is really simple so before I wasted
money on the KYB's I would change them out at school. I never needed two people to change rear shocks, just takes some playing around to get them in.

MBZ033758
BILSTEIN Rear Shock Absorber
w/o Sports Suspension
Bilstein # B 36 1518
Note:
Heavy Duty
Bilstein # B 36 1385 Available 0.00 77.55