Hey Rick, i just ordered some Tanabe DF210's they were the nicest size drop i could find without spending a boat load of money for some coil overs or air suspension. The drop is 2.2 in the front and 2.0 in the back. I got mine from www.intensescion.com their local for me. The shop is Intense Morotsports. so i had to pay tax, but you can get them shipped for $150. Youll find most everything is about $150. hope this helps.
im very confident in my spring purchase. i think the Tanabes will do me good. Originally i wanted to get the Tien S-Tech springs. but i wanted something more. which i found with the tanabe's. there are ALLOT of reputable spring choices out there. one so suite your every need. from racing, to comfort.
My friend has teins, I have nothing bad to say about them. They basically feel stock except the car is lower. He's had them on his xB for about a year and has had no problems, and is going to be putting them on his new RS4 also.