Check out Tein Street Flex coils and the EDFC electronic dampening!
I run this set up on my Nismo and absolutely love it. You can adjust the dampening on the fly and set the presets to your liking. It's the ultimate daily driver and with the click of a button you can stiffen it up for the track.
I'll post the link to my build thread if you want to check mine out
Broxx's '15 Nismo Build Thread