Bc BR coils
 

Still new too the z platform but purchased an 2015 nismo Z im looking at lowering the car as low as the pic i posted. Im looking at the Bc br coils with Spc rear camber kit. anything else you think i need and i assume these coils will drop the car that much? sorry tried too search forum couldn't find much.

The BC Racing BRs will get you to that height no problem. Here is a Z on a set of BC Racing Brs:

I can get you a great deal for both the coilovers and SPC Rear Camber kit. Though i recommend getting SPL over SPC.

http://www.royalspeedshop.com/v/vspf...s/IMG_0222.jpg

Yes they will go that low. SPC stuff is fine, but I much prefer SPL suspension parts. You will benefit from getting toe bolts as well to make sure you can keep a factory alignment if that's what you desire. At that height, you should be fine in the front end alignment-wise, so you don't need to worry about getting front camber arms. Just make sure you take it to a good alignment shop once you get everything installed and the coils settle.

Welcome to the Z life and enjoy it!