I have that package on my V6. Stiff enough for normal use, not recommended for any type of oval work. Drag strip ok. It dropped the front and the back "1.
If your wanting more of a drop look at some other packages. This has most of the things you will be needing for better handling. You don't need Caster Camber Plates. You might want to add Adjustable Upper and Lower Control arms.
If you want to be able to adjust your drop, get the coil over kits.
2013 Silver V6 Premium, Ford Racing Handling Package, MGP Black Caliper Covers, Airaid CAI, Bama Tuner, BBK Catted X-Pipes, Ford Racing Sport Axle-Back Exhaust...Alum One Piece Driveshaft, BBK Ceramic Shorties, Whiteline Adj. UCA, Whiteling ADJ. Lower Control Arms, Whiteline Adj. Pan Hard Bar, Upgraded Rotors (Cross Cut and Drilled), Ceramic Pads, J&M Stainless Steel Brake Lines (Front and Back), 18" Staggered Chrome Bullitts, MMD Eleanor Side Scoops, Side Scoops, Roush Front and Lower Grilles and Super Snake Stripes.