You also need a rear camber kit since the camber will most likely be more out of spec after lowering in the rear than in the front. I have KYB AGX shocks with Neuspeed race springs and ingalls camber kit in the rear and Skunk 2 in the front. I love the setup. It was cheap and it handles like a dream. For a less aggressive drop, I would recommend the Neuspeed sport springs. The stock GSR strut bar in the front is all you will need, then get a Comptech swaybar-tie bar combo and it will really handle nicely. The whole setup will run you over $500 but it is far better than any engine upgrade that you can buy for $500.