I'm planning on buying this set up what do you guys think or if somebody has this set up on a Z can you please post pictures and tell me how low can you go on the drop and how is the ride quality..

 

I was given a set to test, I sincerly recommend that you make a different choice. They do not have suffecient dampning for the spring rates they come with. BcRacing makes them, but claim they are the way they are because Megan specs them to be that way. I pulled mine from the car and resold them, but not before I bought softer 448lbs springs to run in the front, only then did I feel ok about letting someone else have them. Again, make a different choice.

IMO, if you can't afford good quality new, like Bilstein Pss9, HKS III, or Cusco Zero2, buy something used. Like any of the above or HKS RS. Though we really have no clue what your wants and needs really are.