go with the tanabe. I just got them installed today and drop looks really nice. I'm going to post pic tomorrrow. I also put on my new 18" wheel with 225/40 after it was all done, in the front about 1 finger gap between tire and Fender
. Also 1 finger gap in the rear too. Sportline will have more drop in the rear to level the car. I personally don't like the level look. I like how rear is little higher than front, makes car look more aggressive. I'm glad I went with tanabe and I only paid $175 from shop I go to. Good luck on your choice.