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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Sway bar end links?



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      08-07-2018, 01:41 PM   #1
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Hey guys I'm thinking of upgrading my front and rear sways from the oem E93 335 to the E92 M3. My question is, do I have to also replace the sway bar end links as well or am I okay with re using the ones I have if they're in good shape? Any help would be appreciated thanks in advance
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      08-08-2018, 04:58 PM   #2
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Damn really no one can chime in?
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      08-08-2018, 05:05 PM   #3
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I would consider them just like any other rubber bushing on the car and replace them while you are already in there. IIRC the M3 sways have stiffer rubber bushings anyways so it may be worthwhile to upgrade so you have links that are matched to the sway bar.
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      08-08-2018, 05:45 PM   #4
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Ideally they should be replaced to keep your geometry correct.

Here is just a random example of how the geometry can change with the proper length of end links.







Another reason to change/upgrade them is because the stockers wear over time.
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      08-08-2018, 06:00 PM   #5
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Originally Posted by SnapCoupe View Post
I would consider them just like any other rubber bushing on the car and replace them while you are already in there. IIRC the M3 sways have stiffer rubber bushings anyways so it may be worthwhile to upgrade so you have links that are matched to the sway bar.
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Originally Posted by Jeff@TopGearSolutions View Post
The end links don't necessarily have to be replaced.

However, ideally they should be replaced to keep your geometry correct.

Here is just a random example of how the geometry can change with the proper length of end links.

[IMG]http://honda-tech.com/attachment.php...8;d=1270653263[/IMG]

Another reason to change/upgrade them is because the stockers wear over time.
Thank you guys for the replies! And okay I think I'm leaning more towards changing them too just because I feel it's a better balance. Now would I have to change them again if I lower the car? Or it doesn't matter whether is stock or lowered?
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      08-08-2018, 06:22 PM   #6
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Op....I just did this upgrade on my E91. I upgraded the end links to adjustable heavy duty ones. Also my Wagon is lowered on Eibachs. I changed out all the bushings also. I’m very happy with the results.
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      08-08-2018, 07:59 PM   #7
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Originally Posted by FlaPatsFan View Post
Op....I just did this upgrade on my E91. I upgraded the end links to adjustable heavy duty ones. Also my Wagon is lowered on Eibachs. I changed out all the bushings also. I'm very happy with the results.
Are you just on lowering springs or did you get new struts too? And do you have a link to where you bought your end links?
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      08-08-2018, 09:17 PM   #8
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I replaced shocks and struts also....I went with STAGG SHS. Affordable shock/strut combo that paired up nicely with the Eibachs. Ride quality is great, stock/sport feel.

I found the end links on eBay. Just do a search for - Heavy duty adjustable sway bar end links BMW 3 series E90 / E91 / E92 / E93. Company called GRP out of Germany.

I tried pasting the link, but it attaches all my info from eBay since I just bought them recently. I just looked them up. There are still some available so you should find them easily.

Last edited by FlaPatsFan; 08-08-2018 at 09:31 PM..
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      08-08-2018, 09:27 PM   #9
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Originally Posted by FlaPatsFan View Post
I replaced shocks and struts also....I went with STAGG SHS. Affordable shock/strut combo that paired up nicely with the Eibachs. Ride quality is great, stock/sport feeling.

Here is the link for the end links...
https://rover.ebay.com/rover/0/0/0?m...2F281695078940
That's a killer deal! And those struts are fucking ridiculously priced! I might try those too! I just finished your review and I'm kinda thinking it now, where about in south Florida do you live?
I pressed the link and it worked fine went straight to the page and no info of yours showed up but I found them!
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      08-08-2018, 09:39 PM   #10
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I’m in Sarasota, very flat and straight. So this suspension set up works fine for me. Not sure how it would be on very bumpy crappy roads like up north. The few bumps and twists and turns in my area the suspension handles it well.

Some ppl may poo poo the STAGGs but the SHSs seem to be better model. I did a lot of research and most of the reviews were pretty good. So I decided to pull the trigger. I may upgrade down the road but for now, and the limited driving and low miles I put on the car the current set up is perfect.

Ahhhh ok great....glad it worked and you found them. If you have questions shoot me a pm I’d be glad to answer them.
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      08-08-2018, 09:47 PM   #11
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Originally Posted by FlaPatsFan View Post
I'm in Sarasota, very flat and straight. So this suspension set up works fine for me. Not sure how it would be on very bumpy crappy roads like up north. The few bumps and twists and turns in my area the suspension handles it well.

Some ppl may poo poo the STAGGs but the SHSs seem to be better model. I did a lot of research and most of the reviews were pretty good. So I decided to pull the trigger. I may upgrade down the road but for now, and the limited driving and low miles I put on the car the current set up is perfect.

Ahhhh ok great....glad it worked and you found them. If you have questions shoot me a pm I'd be glad to answer them.
Damn man no way you live in Sarasota!? That's awesome I live in Sarasota too! I think I might have even seen your E91 once maybe... but thanks man I'll definitely let you know how it goes, did you install everything yourself or did you go somewhere to get it done?
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      08-09-2018, 06:53 AM   #12
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Quote:
Originally Posted by Daniel08E93 View Post
Hey guys I'm thinking of upgrading my front and rear sways from the oem E93 335 to the E92 M3. My question is, do I have to also replace the sway bar end links as well or am I okay with re using the ones I have if they're in good shape? Any help would be appreciated thanks in advance
If you lowered the car, you will need adjustable end links. If the geometry of the car stays the same, you could use OEM length end links. The OEM end links are not very stout. You will find that after mkt., adjustable end links 9/10 have really stout bushings & construction.

The rule of thumb is, when lowering a car, is to add length to the front & subtract length in the rear.

You need to measure from the center of the hub to the top of the fender to find the ride height, before you put it up on ramps or jack stands. Then you set the new end links to the ride height. This way there is no pre-load on the swaybars.

To do the rear swaybar, I think you will have to lower the subframe about 6" or so, on all four corners. If you live in a 4 seasons state that uses salt on the roads in the winter, the 4 bolts that hold the bushings and subsequently the swaybar to the rear subframe are likely frozen on the subframe. You'll need some Kroil Oil and probably a torch to heat them up. Let the bolts soak over night.

Also, if you are lowering the subframe down in the rear, that would be a great time to do SS brake lines since the attachment points are now accessible.

$600.00 for new M3 swaybars is pretty steep. Eibach makes a set of front and rear swaybars, that are tuned to their lowering springs, for $277.00 out the door. FYI...,
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      08-09-2018, 07:31 AM   #13
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Originally Posted by Daniel08E93 View Post
Damn man no way you live in Sarasota!? That's awesome I live in Sarasota too! I think I might have even seen your E91 once maybe... but thanks man I'll definitely let you know how it goes, did you install everything yourself or did you go somewhere to get it done?
Nice, small world! Yeah my E91 is the only one like it in the area. Hard to miss now especially with the headers done. I use German Cars of Sarasota. I know the owner and most the staff there. They do great work and prices are much less then a dealership. They have done a bunch of work on my car. Keep me posted. Let me know if you wanna meet up so you can see some of the mods I’ve done in person.
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      08-09-2018, 08:08 AM   #14
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@mweisdorfer I have seen their sways but the rear are just not stiff enough for what I'm looking for honestly and that's why I'd prefer to go the M3 route, and so when I do eventually lower the car would I have to re measure from the hub to the fender when it's already lowered? Or is that something done before I put the new struts and springs on? And I live in Florida where the only 2 seasons we have is summer and hell with a butt load of rain : and I didn't know about the SS being that annoying to get to so I might as well do it at once like you suggest thanks again for all the info!
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      08-09-2018, 08:12 AM   #15
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Originally Posted by FlaPatsFan View Post
Nice, small world! Yeah my E91 is the only one like it in the area. Hard to miss now especially with the headers done. I use German Cars of Sarasota. I know the owner and most the staff there. They do great work and prices are much less then a dealership. They have done a bunch of work on my car. Keep me posted. Let me know if you wanna meet up so you can see some of the mods I've done in person.
I've heard great things about them I might have to see about having them install the struts and springs when I eventually get that done. I try to do most of the work myself but I'm a little sketch about messing with that. I will definitely hit you up to see that bad ass E91 man I would live that I'll PM you my number
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      08-09-2018, 08:12 AM   #16
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Originally Posted by Daniel08E93 View Post
@mweisdorfer I have seen their sways but the rear are just not stiff enough for what I'm looking for honestly and that's why I'd prefer to go the M3 route, and so when I do eventually lower the car would I have to re measure from the hub to the fender when it's already lowered? Or is that something done before I put the new struts and springs on? And I live in Florida where the only 2 seasons we have is summer and hell with a butt load of rain : and I didn't know about the SS being that annoying to get to so I might as well do it at once like you suggest thanks again for all the info!
Daniel....FYI I bought both of my M3 sways used. One from a forum member and the other off eBay. If I remember correctly cost me little over 200 for both. They were in excellent condition.

Cool, if you do go there let me know. I will tell them I referred you from the forum and they will prob give you a bit of a deal.
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      08-09-2018, 08:14 AM   #17
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@FlaPatsFan I'll look into that. For that price that's a damn steal! Where'd you get the bushings from? And did you also switch out the bushing plate as well or does the 335i one fit?
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      08-09-2018, 10:35 AM   #18
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Quote:
Originally Posted by Daniel08E93 View Post
@mweisdorfer I have seen their sways but the rear are just not stiff enough for what I'm looking for honestly and that's why I'd prefer to go the M3 route, and so when I do eventually lower the car would I have to re measure from the hub to the fender when it's already lowered? Or is that something done before I put the new struts and springs on? And I live in Florida where the only 2 seasons we have is summer and hell with a butt load of rain : and I didn't know about the SS being that annoying to get to so I might as well do it at once like you suggest thanks again for all the info!
Wait till you put in the new shocks & struts to get a ride height.

Yep, the Brake lines are a major PITA in the rear, with the subframe in its place. When the subframe is lowered and or out of the car completely, it's easy.

I would highly recommend Goodridge SS Brake Lines.

I just put in Whiteline adjustable endlinks on my car today. I had the replace the Hotchkiss endlinks because the boots were torn, and I was getting a clunking sound.

Whiteline end links were super easy to install. I like them better than Hotchkiss to be honest.

I'll post a DIY soon in the DIY section on that. I didn't really need to worry about ride height with these. I'll explain in my DIY.
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      08-09-2018, 10:37 AM   #19
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Quote:
Originally Posted by FlaPatsFan View Post
Quote:
Originally Posted by Daniel08E93 View Post
@mweisdorfer I have seen their sways but the rear are just not stiff enough for what I'm looking for honestly and that's why I'd prefer to go the M3 route, and so when I do eventually lower the car would I have to re measure from the hub to the fender when it's already lowered? Or is that something done before I put the new struts and springs on? And I live in Florida where the only 2 seasons we have is summer and hell with a butt load of rain : and I didn't know about the SS being that annoying to get to so I might as well do it at once like you suggest thanks again for all the info!
Daniel....FYI I bought both of my M3 sways used. One from a forum member and the other off eBay. If I remember correctly cost me little over 200 for both. They were in excellent condition.

Cool, if you do go there let me know. I will tell them I referred you from the forum and they will prob give you a bit of a deal.
Wow, $200 for both!!! That's a great deal. I'd do that, if I came across such a deal in a heart beat.
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      08-09-2018, 12:12 PM   #20
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@mweisdorfer Jeep me posted as I would be super interested in that DIY and thanks man you've really help me a lot I will look into getting the SS lines too and get them replaced while I'm already down there
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      08-09-2018, 12:35 PM   #21
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@mweisdorfer Jeep me posted as I would be super interested in that DIY and thanks man you've really help me a lot I will look into getting the SS lines too and get them replaced while I'm already down there
https://www.amazon.com/Goodridge-310.../dp/B00HZGSD3S

https://www.e90post.com/forums/showthread.php?t=1523944
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      08-09-2018, 01:26 PM   #22
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Wow, $200 for both!!! That's a great deal. I'd do that, if I came across such a deal in a heart beat.
I know right, I searched for awhile and eventually found great price for both. If you’re patient and not in a hurry hunting around pays off!!! I’m all about finding deals!
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