[DieselDiner]

This is really starting to bug me, as I'm certainly a potential purchaser of the 'performance suspension', new edition. Take a look at this pic of a press car from BMW that shows the car with the new suspension. Does this really look like it's only dropped 10mm lower than the sport suspension? It looks like a more significant drop to me:



Picture from Bimmerfile: http://www.bimmerfile.com/2010/02/03...formance-335i/

[lawwailok]

Originally Posted by DieselDiner

This is really starting to bug me, as I'm certainly a potential purchaser of the 'performance suspension', new edition. Take a look at this pic of a press car from BMW that shows the car with the new suspension. Does this really look like it's only dropped 10mm lower than the sport suspension? It looks like a more significant drop to me:

i'm on 18s with stock size tires, so i don't know if running 19s with different tires size will make difference on how the car looks like the pic.
i would love to try on a set of 19s and see if that will make the wheel gaps look smaller so the car would "look" lower

[DieselDiner]

Originally Posted by lawwailok

i'm on 18s with stock size tires, so i don't know if running 19s with different tires size will make difference on how the car looks like the pic.
i would love to try on a set of 19s and see if that will make the wheel gaps look smaller so the car would "look" lower

Here's a pic of my car with 19's on sport suspension; it appears to sit significantly higher than the photo car:

[mcrazyrider]

Originally Posted by MacBlack335i

Installed the kit this weekend. Went from STD suspension to Sport springs and the $133 kit.

Was looking for a bit more drop, but I hope it settles more in the next 2 weeks.

Other than the rear shocks, the install wasn’t too bad. You definitely need a good spring compressor.

Overall ride is very much improved...

Thought hard about getting the Yellow Performance springs but Evan suggested staying with the Sport Springs.

It doesn’t look like much more of a drop if any. That was the painful decision I had to make. Wanted a good ride, daily driver, but wanted the look of a little more drop.

im going from stock to performance suspensin as well, besides old perf struts and ZSp springs, What other parts do i need to get for this set up?

[FinerThingsinLife]

I just bought the 133$$$ kit, love what y'all are saying that the ride is firmer but it still feels OEM and more stable etc... Only disappointment to me is the drop, i don't want a huge drop but i want to get rid of the wheel gap and try to keep the ride quality as close to OEM as possible. Was thinking about buying the BMW yellow springs but from what that seems is it doesn't lower it very much. Anyone have any words of wisdom onH@R springs or Eibach springs throwing them in? or maybe just throwing some perches in there? Im pretty new to all this just don't wanna spend a ton of $$$ but wanna try to keep it OEM with an aggressive look.

Thanks!

[Fraggy]

Id consider Eibach Pro just cause the spring rates are so close to stock that it shouldnt mess up the ride or handling to much.

[Flyer]

Any updates from you that have installed the old perf kit. I received mine but i'm still trying to decide what to do about springs. (I have oem sport suspension on my LCI) The yellows seem to be liked but don't seem to lower the car more than the stock perf springs, and I can't find a reliable post on aftermarket springs with this set-up. Anyone want to chime in here???

[FinerThingsinLife]

Gonna be a while before i can install mine, pretty slammed don't have time/tools where I am to do it myself. And don't have the time to take the car to the city!!! Im thinking eibach springs by what everyone is saying or getting the per yellow springs with the perches in the front. Tell me what you end up doing!

[marconi118]

is this old KIT bmw part 33500429574 ???

[mattsten]

Originally Posted by Flyer

Any updates from you that have installed the old perf kit. I received mine but i'm still trying to decide what to do about springs. (I have oem sport suspension on my LCI) The yellows seem to be liked but don't seem to lower the car more than the stock perf springs, and I can't find a reliable post on aftermarket springs with this set-up. Anyone want to chime in here???

No, the yellow springs do lower the car a slight bit. If you search from some posts from Mr.5 he did a comparison a few years back regarding the difference between them and the stock zsp springs. Apparently they do ride a bit stiff. But, they are the cheapest option for oem springs--cheaper than the zsp springs. For those looking for used springs and can't find the exact spring number they are looking for, the 1 series cars use the same front springs as the 3 series. The rear springs interchange as well, but they are a bit softer. The 135 and 335 cars all use D6 or D7 springs with zsp while the rear spring in a 335 is either going to be D3,D4,D5 depending whether it is coupe or sedan. The 135 is probably going to have D2. The 328/128 is going to have D4 or D5 depending on transmission in the front and the rears should be the same as the bigger engine cars. For example, if you search part number 31336767376 (the front spring number for a "D4" spring) you will see it shows applicability in both e82 and e9x cars. I hope this helps people who bought this kit and are having a hard time finding used springs--at least this gives a bit more options to search. IMO, if you are looking to lower the car a smidge from zsp just get the yellow springs. Give Evan at Tischer your VIN and he can get you the right ones. This seems much better than the "one spring fits all" scenario some of the aftermarket companies go with...

[OnlyTruth]

Originally Posted by mattsten

No, the yellow springs do lower the car a slight bit. If you search from some posts from Mr.5 he did a comparison a few years back regarding the difference between them and the stock zsp springs. Apparently they do ride a bit stiff. But, they are the cheapest option for oem springs--cheaper than the zsp springs. For those looking for used springs and can't find the exact spring number they are looking for, the 1 series cars use the same front springs as the 3 series. The rear springs interchange as well, but they are a bit softer. The 135 and 335 cars all use D6 or D7 springs with zsp while the rear spring in a 335 is either going to be D3,D4,D5 depending whether it is coupe or sedan. The 135 is probably going to have D2. The 328/128 is going to have D4 or D5 depending on transmission in the front and the rears should be the same as the bigger engine cars. For example, if you search part number 31336767376 (the front spring number for a "D4" spring) you will see it shows applicability in both e82 and e9x cars. I hope this helps people who bought this kit and are having a hard time finding used springs--at least this gives a bit more options to search. IMO, if you are looking to lower the car a smidge from zsp just get the yellow springs. Give Evan at Tischer your VIN and he can get you the right ones. This seems much better than the "one spring fits all" scenario some of the aftermarket companies go with...

Agree used zsp (sport) springs became a hard commodity. I also noticed that there is a lot of E92 used springs available but not E90. Wonder why...Are coupe owners more prone to modifications?

[mattsten]

Originally Posted by Oleg

Agree used zsp (sport) springs became a hard commodity. I also noticed that there is a lot of E92 used springs available but not E90. Wonder why...Are coupe owners more prone to modifications?

Probably, I would assume coupe owners are more "enthusaists" as a whole. You can use any spring from a 1 series or any 3 series car and it will "fit", but the number on the spring has to be right to get the correct ride height. The easy way to make sure you have the right spring is to match the number after the letter up with your current setup. The front springs from any 1 series or 3 series should interchange between models of the same engine and transmission--so 128i manual front springs should be the correct front spring for a 328i manual (coupe or sedan). Again, this is easy to confirm by looking at the number on the spring. The zsp 128i manuals I saw had D4 front springs, same as my 328i--I also confirmed this with a 328i manual coupe (Sunday perusing around the BMW dealer lot). As for the rear suspension, all 1 series cars rear spring will likely be L2 or L3. An e92 regardless of engine will use D2 or D3, but the sedan needs D4 or D5 springs, which seem to only come on the sedan. The engine size does not seem to play into the rear springs, which makes sense since the additional weight is over the front end. As for the e91/e93, the front springs will still be of the expected number, but the rear springs are a bit different. Below is a diagram of my findings of zsp spring numbers:

128/328 manual FRONT (all body styles)--D4
" " automatic FRONT (all body styles)--D5
135/335 manual FRONT (all body styles)--D6
" " automatic FRONT (all body styles)--D7

128/135 REAR--L2 or L3?--does anyone know anything about these?
328/335 (e92) REAR--D2 or D3
328/335 (e90) REAR--D4 or D5
e91/e93 REAR--??

Yellow Performance Springs--this is all I know
135/335 (all) manual FRONT--T3
35/335 (all) automatic FRONT--T4
328/335 sedan REAR--T4

I hope this helps some people in need of springs. You may have to piecemeal it to get the right stuff. If say have a 328 e90 and you bought a set of of 328 e92 springs and 335 e90 springs you could take the front from the coupes and the rear from the sedan and have the correct "set" for your car. What you would have left over is the correct "set" for a 335 e92 which you could then sell to a member who needs that....Bottom line--match up the numbers (except yellow performance--get the correct pn from Tischer for those!)

[OnlyTruth]

Thanks for the summary but I got responses from 135 owners while front springs are D6-D7 rears could be L3....

[stressdoc]

I would consider giving Harold (HPAutowerks) a call to see if he can recommend Swift springs that would match the BMW Perf dampers -- maybe 250 front, 450 rear or something like that. Of course AST 4100s would be better, but for $133 the value can't be beat.

[MiniMotoMan]

I just tripped across this thread by accident. I have an 07 335i sedan sport package with auto transmission.

On my passenger rear, the spring is sagging its about an inch lower than the other side. I have D5's in the rear does anyone have one/pair they are willing to part with. I dont want to lower or even need the performance
(although Id like it) fact is I dont want to start spending on her or else Ill never stop. I bought a new pair of springs online but they are D3's and that doesnt help me. I didnt give my vin didnt have it when I ordered. Why they have so many spring options is strange to me. So I have some brand new D3's if anyone is interested. Its been awhile from when I ordered them to when I got around to fixing it. I would have likely bought this package had I of known.

Im new to BMW's so reading this thread is a bit over my head terminology wise. Someone should make a list with part numbers as option 1, option 2 etc based on the different setup out there. And that list can be given for ordering purposes. ZSP for E46 I thought?

[stressdoc]

Originally Posted by MiniMotoMan

I just tripped across this thread by accident. I have an 07 335i sedan sport package with auto transmission.

On my passenger rear, the spring is sagging its about an inch lower than the other side. I have D5's in the rear does anyone have one/pair they are willing to part with. I dont want to lower or even need the performance
(although Id like it) fact is I dont want to start spending on her or else Ill never stop. I bought a new pair of springs online but they are D3's and that doesnt help me. I didnt give my vin didnt have it when I ordered. Why they have so many spring options is strange to me. So I have some brand new D3's if anyone is interested. Its been awhile from when I ordered them to when I got around to fixing it. I would have likely bought this package had I of known.

Im new to BMW's so reading this thread is a bit over my head terminology wise. Someone should make a list with part numbers as option 1, option 2 etc based on the different setup out there. And that list can be given for ordering purposes. ZSP for E46 I thought?

Wow springs do not usually 'sag' an inch, I would suspect something else is awry. Definitely have dealer or a real savy chassis/suspension tech look at it.

[MiniMotoMan]

I'm kinda guessing a little but its close to an inch. I took it apart and put in the D3 and the D3 spring sits about the same as the old D5 or maybe a tad bit higher. Either way its still lower than the other side. I inspected everything. There isn't much to it so if something was wrong I'm sure I would have found it then. The plastic cups the spring sits in was a bit worn but I wouldn't think enough to cause that side of the car to be low. Springs are what control ride height right? I had it aligned a few months ago when I put on new tires and its a performance shop and no one said anything. Although I dont think it was sagging as much then.
I need a new D5 I think that will fix it.

[scottp999]

Originally Posted by mattsten

Yellow Performance Springs--this is all I know
135/335 (all) manual FRONT--T3
35/335 (all) automatic FRONT--T4
328/335 sedan REAR--T4

335 performance spring for a manual trans (E92 Coupe) in the REAR is T3 for the latest performance spring kit. Here is a pic on my car:

[MiniMotoMan]

I just got a yellow spring kit and the performance suspension from Tischer. They sent T4's for the rear and T2's for the front. They said when you give them your vin the system tells them what your car needs and dont have access to knowing if the springs they are sending are Txx's. But I would have thought I should have better than a T2 in the fornt for a sedan with auto tanny.

[teleopti]

interesting point. whts the difference b/w T2/T3/T4 etc?

[Fraggy]

I have T3 in front with auto.

[lawwailok]

its weird, mine is auto e90 too, and they gave me T4 both front and rear....
so does the number means the stiffness on the scale 1 is softest and 4 is firmest?