suspension change

[philbo909]

I have B4's and Suplex springs on my Z4C. I'm very happy. They cope pretty well with poor surfaces and potholes. And I can also chuck it down the A68 at silly speeds

which suplex springs did you get though? looking through ebay I'm unsure which are actually meant to go

 

[Steve84N]

6231

 

[NickDE]

There are a lot of possible part numbers - roadster vs coupe, auto vs manual, m-sport or not etc. I phoned them on 01909 770 660 and got them to confirm the right part numbers. Very helpful people, unfortunately they don't sell direct to public.

 

[philbo909]

ok cheers guys, just writing them an email now to make sure and then buy. all the ebay ads say for the m54 as far as i can see

 

[Steve84N]

I have a coupe and I spoke to them and I bought them myself last year. It's 6231 you need unless you have an M?

 

[groovy_hippy]

Really useful thread this folks

I was thinking of a B12 kit until now... I find the standard (none sport) setup to have: 1) springs too soft, 2) shocks too hard, 3)anti roll not quite there either.

Basically, it gets thrown around like I don't know what and you're often hanging on for dear life ha! Now, comparing it to a Boxster S it just doesn't feel anywhere near as composed...
I live in Derbyshire and we're nowhere near as good at making smooth roads as our German friends.

I'm not aiming for Porsche-like suspension, but I'm sure the zed chassis has more in it than our friends at BMW have given it from stock....

Thoughts and comments?

 

[Steve84N]

Eibach springs are harder than OEM.

Bad handling is often shagged dampers.

You can upgrade the anti-roll bars which has less detriment on ride quality. I had this for a while but found they are better matched to stiffer suspension in the B12 kit.