IIRC H&R sways are solid as opposed to OEM which are hollow. For any given stiffness a hollow bar is far lighter than a solid bar. For the front you are better off with the Porsche GT3 front swaybar and Tarret endlinks. The stock endlinks will fail quickly with a stiffer bar so regardless of which bars you buy get good endlinks.

 

Hey guys if you want H&R springs I have a set that I am selling. I got rid of My Boxster And I did not install these because they were for 05 and up And mine was a 2000!!
But now I have a CTS-V

http://cgi.ebay.com/ebaymotors/H-R-S...1%7C240%3A1318