Which Bilstein Struts...Heavy Duty or Sport?

[John V]

The Bilstein HD and the Bilstein Sport are identical in valving and construction with the exception being that the Sport has a shorter shock shaft to accomodate lowering springs.

Incidentally the valving of these shocks is identical to the US/RoW M030 shocks.

So no, the HD's aren't for carrying heavy loads in your Boxster.