I was told the car was lowered, but when I looked at the shocks and springs I didnt see any aftermarket names. So I I started looking up the numbers I did find and its coming back with OEM equipment. So I was wondering if you guys could help me out. Thanks in advance.

A pic of the overall assembly:


And the numbers I found:

 

Google says those shocks are "2004.5-2005 revised 350Z shock" - so they're OEM.

As for the springs, no clue, but assuming stock.