The front springs on your kit are progressive. My guess is that the helper portion of the spring is grinding and causing the issue. You can get some rubberized material and wrap the helper spring coils to eliminate the noises.
My thought and diagnostic process leads me to think it’s the spring. It sounded like it was making noise anytime the suspension was moving, even in the slightest. My only other thought was a control arm of some sort. But they wouldn’t have been touched during a spring install. And they usually only make noise towards the end of their travel (when they’re being stressed the most) I anticipate no issue with the Steeda springs though