This is the quote from Bilstein's Sport Shock Specs:
Front:
"Recommended for use if shorter springs are installed. "
Rear:
"Recommended for use if shorter springs are installed. On cars with coilover rear suspension, some rear shocks allow ride height adjustability."

I interpret it as, Sport type should be used if the springs are
shorter? However, it doesn't say whether it can or cannot be used with the stock springs. Since the price of the Sport and HD
is only 4 dollars apart each, I kind of like the stiffer one (sport) than the HD. Any info to educate me is greatly appreciatd.

Thanks,

-fredv-