The lowest price I have ever seen any new Pedders lowering coils would be for about $295 a set of four. I have seen others (such as and including Eibach) for much less. Pedders does cost a little more but based on my reading seem to have many fewer reported problems than the others excepting when they shipped the wrong size for the Cruze; it seems the international versions of the Cruze took a different size. I suspect that is why they started here for the Sonic with just a few sets and when I came along Pedders had determined they had the right coils for the Sonic. And based on a month of driving on them, the Pedders coils I have are the right lowering coils for my Sonic.
I should say in my defense I look for best prices, but I also look for good products. I would rather spend a few bucks more and get what meets or exceeds my personal expectations then save a few bucks and face an endless series of problems. In past years, I have done the latter, so now I make a point to do the former.
But that is just me, being contrary for my own personal taste.
Laborsmith