Ok so the stock suspension is pretty decent to begin with, thier are a few problems. THe next step up would be the nismo suspension it fixes the stock suspensions short falls but has some of its own. What is the next step up from that?
I want a little more agressive than sock but Im not sure about the nismo bloated price of $1800 .

Tein Flex?

 

IMO, some other valid option's aren't mentioned that come before the S-tune setup.

Tokico D-spec shocks or Koni shocks with any of the following

oem springs
Tein H-tech spring
Tein S-tech springs
RSR down springs
Hotchkis springs

After S-tune their are several coilovers system's that come to mind in the folllowing order. Keep in mind that the S-tune setup uses progressive springs, coilovers and the above springs are linear (the S-techs are progressive front).

HKS RS
Not much more expensive then what the S-tune setup costs. Setup will give you adjustable monotube dampners spring rates are very simular to the S-tune specs. Very good owner reviews

Zeal function V6, expensive, but owner review's like the RS are very good. This setup uses a higher front spring rate then it uses in the rear, idea being to improve avaliable traction in the rear.

Tein Flex, very high spring stiffness, several owner complaints about harshness exist, but the coilover also has a number of 100% positive owner review's.

 

Tanabe or Zeal all the way! Yes, Teins are harsh...the valving sucks...

 

I'm surprised that no one mentions the Bilstein setup ('s). If street performance and comfort are the issues, they would be a great way to go. PSS available now, and the PSS9 is coming.

 

problem is, only a handful have used it....

I second what G35 said...HKS RS are best bang for the buck out there, Function V6 is the next step up and easily the most versatile coilover on the market at this point imho

 

Talk to Jason @ performancenissan about Tanabe Sustec Pro S-0C coilovers. I sold my nismo suspension and installed the Pro S package w/ Stillen 3 position sways and Prothane bushings. Tanabe is height adjustable, great (street/track) shock valving, very fair price, relatively easy install. It all comes down to what you plan on doing w/ your car and how much you want to spend.

 

I want an agressive street. Something that will be civil as a daily but when I want to go up to the canyons can it hang .

 

RSR springs Hotchcas sways Koni 2 way adj shocks

Doug Stewart
Crawford Z Service
615-327-4159
www.crawfordzcar.com

Thats what doug at Crawford told me to go with Thats for everyday driving + a lot of autocrossing and track