I got the loudest road noise ever coming from the rear of the car. The faster I go the louder it gets. I am going to get a alignment on Saturday do you think that is the problem?? Please let me know what you think it is. I have the ver 5 struts with 5 zigen springs. Ryan

Did you only do the struts & springs or have you done other suspension work? I suppose the noise could be from the stiffer suspension . . . or something may have been installed incorrectly.

The stiffer your suspension is, the more road noise you will get because more vibration is transferred up into the cabin. You've also compressed the air moving under the car a bit more, which will be louder.