Excellent handling and ride quality!
Replaced my stock springs with the Eibach Pro-Kit. At the same time changed my shocks/struts with Koni STR.T's. Combined my mustang handles better and rides more comfortably. This is the best of both worlds without compromise!! It may not have lowered the full 1.5" but my goal was ride and handling, not lowering - so I think it looks great and more important functions!!
The U bolts were about 1/2" too short.
I had to purchase longer U Bolts locally for 40.00 because yours were too short by about 1/2". The nylon lock nuts liked about 3 threads getting into the nylon locking ring at head of mounting bolts. So, considering I had to pay 40.00 more locally, after tearing down truck, so I could get back on road, they were not a deal. Very disappointed with Belltech. I have purcased half dozen or so products from their name brand and never had problems before.