i looking at 3 different springs..
Eibach Pro-Kit
Tein S-Tech
Tanabe GF210

or anything eles?

pro and con?

 

Just want a drop and your not concerned with anything else, Prokit. Want a drop and have thoughts about some performance enhancement, Hotchkis or S-tech.

 

if you're concerned about warranty with your '06, think about Nismo, although you'll be overpaying -- if you don't give a crap about your warranty, do what Gsedan says -- he's the man on suspension

 

thanks for input!

 

I Had Eibach And Didn't Like The Feel I Had When Driving; Got The S-techs And Feel Is Alot Firmer!

 

does anybody know how long springs last?

 

I did not vote yet because I don't know what you are doing or what you want out of your car.

I got s-techs on mine and love them, they feel firm but not stiff and only drop the car to where it should have been stock.

Chris

 

Likely far longer then you'll stay intested in the car.

 

On the surface you shouldn't come that that conclusion. Both springs peak rates are really close Eibach 384/421 vs S-tech 386/402, hardly the sort of differance that one could say is stiffer then the other ,right? The reason why you felt a differance between the springs lies in how the Eibachs are progressive front and rear, several coils have to bind on the Pro-kits in order to get to the final peak rates posted above. The S-techs are progresssive in the front, but linear in the rear. And on those front S-tech springs, only 1 maybe 1 1/2 coils have to bind to effect rate change so the differance between it's softer initial rate and the published final rate won't be as great as the pro-kits. Your not the only one that didn't like how those springs felt.

Eibach 350Z progressive springs 1”/1” drop
Spring rates in LBS initial/final front 296/384 initial/final rear 316/421

Tein S-tech 350Z progressive front linear rear .7”/.6” drop
Spring rates in LBS 386/402
.

 

Rsr