Ok i was just about to order some lowering springs but i want to make sure im doing it right. Im going to buy the eibach pro kit from upr.right near the "add to cart" button there is an option for complete front and rear spring isolator for 39 extra dollars. What is that? do i need that?

 

If you want a lower drop then you dont need them, if you want the drop that they advertise then get them. Typically no isolaters will give an extra 1/4-1/2 inch drop. If you decide not to get them, then you need to rap the top and bottom of the spring with some duct tape.