My '04 STi recently underwent strut replacement with Feal rebuilt units with the zerk fitment option. I also replaced all the suspension bushings with new factory Subaru rubber bushings. Eibach anti-sway bars and Kartboy end links rounded out the upgrade. Problem now is that is squeaks at low speeds to such a degree that people turn to look at it. I have tightened all the connectors to no avail and am wondering if the struts could be the source. As the struts have zerks in place, would it be wise to "top" them off with some lubricant?

 

How many miles were on the struts before you sent them in for the revalve job?

And yes, I would recommend greasing them up to see if that makes a difference so you can narrow out the root of the noise.

 

I have a low-speed squeak as well that I've narrowed down to my Perrin rear sway bar endlinks, with help from a shop. Could it be the endlinks you just installed?