Thanks for the feedbacke everyone.
Well I don't know what happened but I drove the car another 45 miles or so last night and the resonance is gone. Just the normal increased sound from the intake. Maybe it was an initial seating thing or something. But it's stopped doing it after the first 8 or so miles after the install.
The car defintiely feels like it's got a little more oomph now.....like it :)
The Steeda STS I like but it's still a bit notchy which I'v read on here is common......hopefully it loosens up some in upcoming weeks. But overall I'm happy with it so far.
1.5" drop with SVT springs/dampers didn't hurt ride quality much and car feels tighter around the turns and like the way it sits lower.
Looks kind of lame with stock wheels/tires but I'll probably wear the tires out before spending money on wheel/tire setup.
'10 Silver Focus SE-5spd
'98 Honda CBR1100XX (Blackbird)