They had the rears only!!!! So I continued my search and considered the Koni sports shocks as well . Well guess what ?
I can find Koni sports shocks for the front but they do not make them for the back of the 400e !!!!!! Spent some more time searching the web and finally hit the jackpot.

allimportedparts.com - They had the Bilstein sports yellow shocks for the front and the back and great prices also!!!

MB046465 - rear sports shock --$98.00 ea -free shipping

MB057166 -front shocks -$137.03 ea -free shipping

For the 400E