I just wanted to comment on my first statement. First of all there was a problem wrong with the installation which caused the ride to be bouncy and not that good. I had the problem fixed, then I had my car fully aligned, change the back tires to 245-35 (thanks to Neo for his advise), so there are no rubbing, and then I balanced all 4. It made such a drastic improvement on the car and the way it rides. Thanks guys.