nobody ever mentions this, or possibly nobody ever does this...when you lower your car you are changing the triangulation of the suspension, it is ABSOLUTELY necessary to have you're car realigned about 1 month after the springs are installed. you need to give the suspension time to settle so wait 3 to 4 weeks at the most, but if you don't realign the suspension you'll eat through those $307.00 a piece tires and you'll wish you had paid for the 50 dollar alignment. just a tip and hopefully those who haven't done this go have it done, you'll thank me in the long run!