Hi everyone,
I've been looking at different suspension setups, more specifically

1. Stance LX+
2. Function and Form
3. HKS III (NON SPORT)


Weird thing is that I can't find too much on them for the 350z. So I just wanted to ask and see if anyone can give some type of review on the units. Thanks for any help.

 

You've listed 3 very different choices, yet you have given zero info about what your needs or wants actually are. Rather then just get ignored or empty shoot outs, tell us what you want out of a new suspension.

Goals and budget?
Brands you like, brands you dont' like?

 

Well I'm looking for a coilover set-up that is intended for a daily driver. I would like to stick with more of a familiar name (Tein, Cusco, HKS, etc..).

I chose the HKS III and the LX+ because from their descriptions it seemed that was what I was looking for, something streetable. I really enjoy the stock ride, but hate it when going over a hump or dip at moderate speed (feels like the car is going to hop off the road).

I wasn't able to find the spring rates of the LX anywhere so I was looking for help in that department.

HKS has a 9k/9k if I read correctly, which matches with the Tein Basics. Didn't want to go with the basics because the rear doesn't go low enough for my tastes. Also the basics aren't dampening adjustable.

Function & Form I read off of other forums they were comfortable, but haven't heard any review from a 350z standpoint.

Any insight or reccomendations would be appreciated. Thanks.

 

What I would recommend

Bilstein Pss10 $1595 shipped

Bilstein PSS9/10 coilover (Monotube construction, adjustable dampners)
Special Note: Really good valving that is typical of German engineered products as long as you keep the damper adjustment at or below 5. With good R&D and mild spring rates this setup delivers a ride and drive quality that is beyond reproach. Settings above 5 are not advised, ride and performance is compromised. Setup reuses the oem upper shock mounts, which does reduce NVH levels (speaking from experience, I've run mine both ways). Added plus, the rear dampers can be adjusted from below, no need to pull them off the car to adjust or to drill any holes to gain access to the tops.
Spring rates 370/240-420 (rear progressive

Kw Variant 2 $1550-$1650?
KW coilovers Variant 2, Twintube construction, adjustable damping (rebound)
Spring rates Front 485lbs to 525Lbs Rear: 240Lbs to 548Lbs (progressive springs)
Side note: Another German engineered product with good valving, best kept at the softer settings below half stiff. Stiffer then the Pss9/10 in spring rates and valving this is a higher performance choice, just becarefull about using settings past halfway as rebound does become excessive. This setup also reuses the oem upper shock mounts for reduced level's of NVH.

HKS III (non sport) $1695-$1795?
HKS III (not the Sport model) Monotube, adjustable damping*, full height adjustablity Replaces the HKS RS coilover in spirit with a slight bump in spring stiffness.
Spring rates 448/448
Side note: Like a lot of products that promise street comfort and trackability, this setup may or may not delivery on the track. Review's to date do suggest they deliver on the comfort promise however, as alway's take all review's with a grain of salt, few know the differance between good and bad behavior. *Rear dampers adjust from the bottom so you do not have to pull them to adjust them

Since you mentioned you can't find any specs on the LX+ and I think you need to know, the setup uses 616/560 spring rates. Spring rates don't operate in a vacuum. I would not buy these, not unless I had a chance to get a ride and drive in a car equipped with them, on less them smooth roads.

I have noticed that a few of the F&F owners that sold the setup complained about bounce and ride quality in past posts, with other choices at hand, I'd pass.

 

Thanks for the help and suggestions.

One more thing though, do you have any insight on the H&R coilovers?

 

I'm on the fence about the H&R coilover. On one hand you get German engineered Montotube dampers that are not adjustable. But, the setup uses progressive springs, which I'm not a fan on a sports car and might be driven with performance intent now and then. They have been purchased by more then one Z onwner that intend's and already has taken the car to the track. IMO a Koni setup with custom front springs is a better budget choice for that, just my opinion.

Here's a thread where a bunch of guys that have the H&R coilover are talking. Might want to pm one or two of them and get a opinion.
https://my350z.com/forum/brakes-and-...coilovers.html

 

I would go with the Bilsteins but I would also consider getting the PSS9's because they can be had for slightly cheaper since being fazed out

 

IIRC from reading another post by Gsedan35, the PSS9 do not have the same valving as the PSS10. Not saying there will be huge implications for the OP, just wanted to bring the fact to the table.

 

^I was under the impression it was just the adjustment mechanism and the amount of adjustments you could make

 

absolutley love my Stance coilovers !!!