Those are indeed good prices. I just went through the shopping process (shocks, struts, ROW springs, bushings, etc.) and found out that even though it is a Bilstein HD listed, they are not all necessarily the same. Some are ride height adjustable (threaded) and some are not, dang near ordered the ones from TireRack to save a few bucks and luckily found this out last minute before pulling the trigger. My P-Car is not a Boxster so maybe this tidbit doesn't apply, better to be safe than sorry though.