I honestly don't know! I bought the car from the dealership this way. I'll pull the wheels off and find out, cause I have no clue. All I know is that they red springs.

 

Looks good.

I'm thinking that the springs are either Hotchkis that have settled a bit more or Eibach sportlines. Not sure if the eibach pro-kit is red as well.

 

Very clean, great job

 

For all who wanted to know, I was under my car tonight and saw that my springs were "Sportlines"

 

nice and clean!

 

Looks good! I just recently put my stock wheels back on my black 2006 and I had forgotten how nice that wheel design is! If Nissan had made them with a 10" or 10.5" width and a lower offset I don't think I would buy aftermarket wheels.

 

Your Z looks incredibly clean even tho its mostly stock. Now get some wheels and front lip and you could look like this ^ !!!

The "red springs" that your running must be the eibach sportlines. Im running the same ones and I think they drop your car the perfect amount. Im upgrading to coilovers now tho...

 

sweet. I was thinking the early wheels look too small.