Regardless of what springs you get, dropping this car with springs only will eventually blow out your shocks. If I were to ever go the "spring only" route I would go with a more conservative drop, like Cobb or Eibach. Still going to put more stress on the shocks, but not as quickly I would imagine. If you want that "slammed" look with only doing springs, well, you'll have to face the consequences of possibly blowing your shocks in the near future.