Hmmm very tempting!
What kind of drop comes with those springs?
These springs are actually made for us by Eibach, and they spec out the same as Eibach Pro Kit springs.
I had this same setup on one of my own Mustangs and it was a great all around setup. Don't let anyone convince you that you need an $8000 suspension package to cruise around on the street. The package I recommended is excellent for all around use. If you told me you were setting the car up for NASA American Iron Xtreme, I'd suggest something different...