Looking into tein flex z coilover or stance. Tein z is around 800-900. And stance is 1160. Using for daily driving with a decent drop.

 

I had ISC N1 on my 09 wrx and absolutely loved them. Finish on them was very well done and the ride quality was much better than BCs for the same price.

 

I would go with Stance. They make quality coils for our cars and everyone seems to enjoy them. I plan on getting a set in the near future

I have Tein street flex on my 370z and I love them but I only chose them because I got the electronic dampening as well.

 

Personally, I'd do the Flex Z's over any of the Korean/Taiwan mono tube shocks for daily driving duty. They're also an OEM-type in the rear instead of a true coil-over so there's less potential for issues related to running true-type rear coil-overs.

 

What kind of potential issues do true rear coilovers have?

 

Warping at the strut tower area as the weigh of the car will rest there instead of the area where the springs would sit. It's a bit extreme but I have not seen anyone really report that happen yet.

 

More likely problem is failure of a rubber bushing on the hub. Don't ask me which one, I'm just parroting what I saw on The370Z.com forums. No one there running true-types on their street cars have experienced shock tower distortion. Yet.

 

Yep, strut tower mushrooming, premature bushing wear and you're changing the way the suspension functions, making it more linear in the rear. I think you probably introduce some NVH and it requires different spring rates.

On the plus side, the spring stays more linear, you can increase wheel frequency and you can set preload. You'll be able to replace the big mid link and moving all the components inboard reduces unsprung weight.

Some guys on the 370z forum think it makes the car a bit more flighty in the rear. Not sure how true that is or if it's a placebo. Could be a result of spring rate choice/shock valving too. But with the OEM spring location, due to the arm's arc, it makes the spring progressive and probably softens the initial suspension hit. Going true type lessens that effect almost to zero.