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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 10-27-2011, 08:15 PM   #1
Keving60
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Eibach Pro vs. Bav Auto Springs

While replacing rear rotors/pads I noticed one of my rear springs is broken so I finally have a good reason to buy new suspension for my daily driver.

I've searched high and low researching suspension options for the XI. I'm not looking to spend a ton of $ on the daily. My wife has neck problems so I'm not looking for something that will bounce her into the sunroof. I've settled on either Eibach Pro's or Bav Auto's springs, with Bilstein Sports due to the softer ride with these combos.

I've been looking all over for information on the Bavarian Auto springs but only found hearsay and people with older non E46 models. Does anyone on here run either setup? I'm looking specifically for first hand experience on how the car rides, longevity, and pictures. Somebody out there must be running this setup on an XI?
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Old 10-27-2011, 09:42 PM   #2
Kubica
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Eibach. No one buys bavauto springs anymore because they are garbage. Don't pair them with bilsteins if your wife has neck problems. Konis are more comfy.
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Old 10-28-2011, 07:24 AM   #3
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Eibach and koni yellow or stock springs with Sachs if you want a nice ride. Bilstein and h&r are a very sporty ride.
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Old 10-28-2011, 07:31 AM   #4
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i was about to grab some bilstein sports...but after seeing a few comments im not so sure i wanna go that route....i'm leaning towards koni now...koni yellows, noticed some sites don't offer them anymore, either fsd or str ones? just wondering if the str ones are replacements for the yellows and the fsd ones to replace the adjustables.....
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Old 10-28-2011, 08:56 AM   #5
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i took the advice of a lot of guys on the forum and went the eibach/koni sport route and couldn't be happier. Think about the roads you have to deal with, how comfortable a ride you want and lowering (if that's important to you). To me, the eibach/koni combo gives you the best balance of looks and ride comfort. Its a little stiffer and lower than stock..nothing crazy.
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Old 10-28-2011, 02:19 PM   #6
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yeah i think i'm on the search for some koni!!! Just trying to find on users of fsd and str ones.....Eibach seems to be the given choice, those i already have, just wanted to explore my options for struts....hmmmm
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Old 10-28-2011, 05:29 PM   #7
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i have eibach springs basically given to me and i'm thinking about doing bilstein sports as they are $250 cheaper than konis.

i've seaeched all threads and couldnt find one person with this setup, why is that so? (maby they dont fit properly?)

in theory they should have a slightly softer ride than H&R. should i go for eibach and bilsteins?

and sorry for thread jacking OP
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Old 10-28-2011, 10:36 PM   #8
Keving60
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It sounds like everyone agrees on the Eibach and Koni's. Is anyone running the Bilstein sports w/Eibach? I'm just curious to hear how they ride from someone first hand.
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Old 10-29-2011, 12:04 PM   #9
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There was quite a run of Bilstein rear shocks that were reported as leaking. Recently, several posters were on their second or third warranty set and still having leaks.

I don't know if Bilstein has this resolved? Not sure if buyers were more comfortable going with Koni for this reason.
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Old 10-29-2011, 01:09 PM   #10
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last night i did some searching....some people with eibach and bilstein sports say its comparible to factory, a tad bit stiffer? its hard to judge, unless someone has actually tried eibach with bilstein and eibach with koni.....plus what someone may fine too stiff, someone may not....argh...i'm confused again....lol....plus your right, 250 difference is alot, that'll cover half of the labour!!!!! i've had bilstein before on other vehicles they weren't bad, i've also had h&r on my vw....h&r was a bit too stiff for me.....but then again the rims didn't help either....so...back to square one....
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Old 10-29-2011, 08:03 PM   #11
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Yes I'm running eibach and bilsteins right now (hd up front, e36 m3 rear).

It's the best all-around setup in my opinion. Pair with an HnR rear swaybar, powerflex fcabs and rtabs, and sticky 235 width tires.
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Old 10-31-2011, 10:34 AM   #12
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Quote:
Originally Posted by Kubica View Post
Yes I'm running eibach and bilsteins right now (hd up front, e36 m3 rear).

It's the best all-around setup in my opinion. Pair with an HnR rear swaybar, powerflex fcabs and rtabs, and sticky 235 width tires.
Great! now you just threw me a curve ball!!! lol
Bilstein HD? vs Bilstein sports?.....lol
the sports are shorter, but are they durable as hd?
maybe i should install one of each in all for corners say....
one front stock shock, front bilstein hd
rear bilstein sport and one rear koni?
lol.....
just kidding.
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Old 10-31-2011, 07:53 PM   #13
Keving60
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Do the Bilsteinn hd's ever bottom out? Are the sports any stiffer or do they just have a shorter range?
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Old 11-05-2011, 10:03 PM   #14
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any updates one anyone's suspension? what about koni street str? don't need adjustables....
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Old 11-06-2011, 01:01 AM   #15
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Quote:
Originally Posted by Keving60 View Post
While replacing rear rotors/pads I noticed one of my rear springs is broken so I finally have a good reason to buy new suspension for my daily driver.

I've searched high and low researching suspension options for the XI. I'm not looking to spend a ton of $ on the daily. My wife has neck problems so I'm not looking for something that will bounce her into the sunroof. I've settled on either Eibach Pro's or Bav Auto's springs, with Bilstein Sports due to the softer ride with these combos.

I've been looking all over for information on the Bavarian Auto springs but only found hearsay and people with older non E46 models. Does anyone on here run either setup? I'm looking specifically for first hand experience on how the car rides, longevity, and pictures. Somebody out there must be running this setup on an XI?
Your statement about your wife is the key to this entire thread, everything else is secondary. Bottom of page for my recommendations.

Quote:
Originally Posted by Kubica View Post
Eibach. No one buys bavauto springs anymore because they are garbage. Don't pair them with bilsteins if your wife has neck problems. Konis are more comfy.
Yes. Totally agree.

Quote:
Originally Posted by gitchies View Post
i was about to grab some bilstein sports...but after seeing a few comments im not so sure i wanna go that route....i'm leaning towards koni now...koni yellows, noticed some sites don't offer them anymore, either fsd or str ones? just wondering if the str ones are replacements for the yellows and the fsd ones to replace the adjustables.....
No to your question/statement. Also the Koni STR.T are turning out to be problematic, I wouldn't consider this an option.

Quote:
Originally Posted by Kubica View Post
Yes I'm running eibach and bilsteins right now (hd up front, e36 m3 rear).

It's the best all-around setup in my opinion. Pair with an HnR rear swaybar, powerflex fcabs and rtabs, and sticky 235 width tires.
Did Bilstein USA replace your rear HD with E36 M3 Sports #24-024532 under warranty ?

Quote:
Originally Posted by gitchies View Post
Great! now you just threw me a curve ball!!! lol
Bilstein HD? vs Bilstein sports?.....lol
the sports are shorter, but are they durable as hd?
maybe i should install one of each in all for corners say....
one front stock shock, front bilstein hd
rear bilstein sport and one rear koni?
lol.....
just kidding.
There's NO difference between the Sport vs. HD in terms of lastability or ruggedness.

Quote:
Originally Posted by Keving60 View Post
Do the Bilsteinn hd's ever bottom out? Are the sports any stiffer or do they just have a shorter range?
This is a good question. Yes, the HD's can bottom out if used with a lowering spring. Bilstein USA will not warranty these shocks based on the "wear patterns". Bilstein can determine under disassembly that the HD was used with a lowering spring. Yes, Sports can be stiffer but that is a case by case situation. Some HD's & Sports have the exact same valving. Yes, all Sports are shorter than HD's.

_____________________________________________________

OP, the answer to your question is this: 1) A new set of BMW OEM stock springs with Koni FSD. This will be the best in terms of A) Comfort (wife) & B) Good Controll. 2) Eibach Prokit springs with Koni FSD. Prokit springs will give you a little drop but will definitely be Firmer riding, Better Control/Less Comfort. The Koni FSD will help make then as smooth & soft as they can be though.

I've owned a lot of Bilstein products over the years. They've been in both race cars I've owned & street cars, including my current BMW 330Ci. Heck, I'm even ordering a set of Bilstein HD's for my Honda Civic on Monday. But based on your needs & the needs of your wife, Bilstein Sports or HD's would not be a good choice. They would be a little to firm for your application.


Good luck in your decision.
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Last edited by Rob43; 11-06-2011 at 01:00 PM.
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Old 11-06-2011, 04:06 PM   #16
Keving60
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Thank you Rob43, great reply. Unfortunately, I had to make the decision earlier in the week as I heard a loud popping sound from my broken spring. I went ahead with the Eibach Pro/Bilstein Sports. A few other replacement parts were on backorder but I'm hoping to be able to install them next weekend. I will post up pictures and opinions after the install. Thanks everyone!
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Old 11-06-2011, 04:13 PM   #17
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Quote:
Originally Posted by Keving60 View Post
Thank you Rob43, great reply. Unfortunately, I had to make the decision earlier in the week as I heard a loud popping sound from my broken spring. I went ahead with the Eibach Pro/Bilstein Sports. A few other replacement parts were on backorder but I'm hoping to be able to install them next weekend. I will post up pictures and opinions after the install. Thanks everyone!

You'll like that combo, but they are more Performance oriented. I've found that the Bilstein Sports have about a 1000 mile break-in. Maybe start putting the wife in it after the 1K break-in period.



Good luck.
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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 11-06-2011, 05:57 PM   #18
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just an FYI front XI bilstein sports are not internally bump-stopped.. make sure to reuse your factory bumpstop or pick up a new one.
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Old 11-06-2011, 06:17 PM   #19
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Koni FSD ftw
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Old 11-06-2011, 06:30 PM   #20
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just an FYI front XI bilstein sports are not internally bump-stopped.. make sure to reuse your factory bumpstop or pick up a new one.
wow! Really.... i need to put on mine then! o_O



whats the cause for not having it?
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