Eibach Pro Kit, Koni Yellows, and Dinan Toe Links Review

matreyia

Lieutenant
Apr 19, 2017
912
This is an initial review of the Dinan Toe Links with Koni Yellows at 90% firm settings, and Eibach Pro Kit springs set.
Initial impressions:

1. Noticeably firmer than stock sport springs.
2. Oddly enough...also noticeably quieter and no more squeaks in car...springs absorb most road imperfections.
3. Car stays super flat in turns and braking and acceleration.
4. Car is 1 inch lower in front and .6 inch lower in back from the Eibach springs.

335i stock toe link.jpg
Dinan toe link grams.jpg
Dinan toe link installed.jpg
stock toe link installed.jpg

20181002_072652.jpg
20181002_072636.jpg
20181002_072717.jpg


Have not had a chance to go all out with curves and throttle to test the Toe Links.
I am satisfied with the improvements and minor lowered look.
Notes: Toe Links are about 230 grams lighter than stock.
 
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Asbjorn

Corporal
Mar 10, 2018
184
Im running Koni FSD + Eibach pro kit on the Zed, and my experience is the same as yours. High speed stability improved alot. My only complaint is that the front now bottoms out more easily on bad roads. Happened around 10 times already in 5000kms.
 
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Bmac

Specialist
Nov 8, 2016
72
Great White North
Eibach's have similar spring rates to the stock sport springs, but they're shorter so you lose suspension travel, which is not something these cars have a lot of to begin with. That's why you're bottoming out. I experienced the same thing with Eibach + Bilstein B8's. OP may not be experiencing that because the Konis are set so firm. The yellow BMW Performance springs and Dinan springs are shorter as well but with increased spring rates.
 

matreyia

Lieutenant
Apr 19, 2017
912
Eibach's have similar spring rates to the stock sport springs, but they're shorter so you lose suspension travel, which is not something these cars have a lot of to begin with. That's why you're bottoming out. I experienced the same thing with Eibach + Bilstein B8's. OP may not be experiencing that because the Konis are set so firm. The yellow BMW Performance springs and Dinan springs are shorter as well but with increased spring rates.
Yeah, could be FSD is soft enough that causes bottom out. Mine are almost max firm on yellows so feels super flat... rough on rough roads but quiet on normal roads. Potholes are the bane of firm settings... oh lord.
 

matreyia

Lieutenant
Apr 19, 2017
912
I was also thinking about the FSD because I actually wanted the smoother stock lux drive with sport abilities...but I suppose it can only go so far. Koni Sport Yellows are pretty drastic on max settings and they do hold straight but you do sacrifice a lot of the lux feel.
 

Asbjorn

Corporal
Mar 10, 2018
184
Alright, I finally got tired of bottoming out all the time. I also didn't like the front height with the eibach springs. It looked too low, especially with the 3deg camber:

g1.jpg

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I have now reinstalled the front OEM springs. It turns out they are 12mm in diameter, whereas the Eibachs were 12.5mm. Very minor difference as @Bmac also said. This is how the car looks with Eibach rear springs and OEM front springs:

180790537.jpg 2090212883.jpg

@yuli8466 showed me this site listing various spring rates for E9x. I wish there was a similar source for E89. I would like to know what my spring rate was before and after installing Eibach pro-kit rear springs.
 
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matreyia

Lieutenant
Apr 19, 2017
912
Alright, I finally got tired of bottoming out all the time. I also didn't like the front height with the eibach springs. It looked too low, especially with the 3deg camber:

View attachment 17230

View attachment 17232

I have now reinstalled the front OEM springs. It turns out they are 12mm in diameter, whereas the Eibachs were 12.5mm. Very minor difference as @Bmac also said. This is how the car looks with Eibach rear springs and OEM front springs:

View attachment 17231 View attachment 17233

@yuli8466 showed me this site listing various spring rates for E9x. I wish there was a similar source for E89. I would like to know what my spring rate was before and after installing Eibach pro-kit rear springs.

My car started to rub after installing spacers...15mm and 18mm so...Gonna roll inside of fenders. Should take care of rubbing. I like the mpg and stability improvements too much to go back to stock.
 

EthanolTurbo

Specialist
May 25, 2018
56
My car started to rub after installing spacers...15mm and 18mm so...Gonna roll inside of fenders. Should take care of rubbing. I like the mpg and stability improvements too much to go back to stock.
What mpg improvements did you notice and how?
 

matreyia

Lieutenant
Apr 19, 2017
912
Just from spacers? That's really strange/unexpected. What is your guess on why?
Not from the spacers, from the lower eibach springs. The spacers only improved curvy driving as the car is more flat on cornering and also soaks up bumps more due to more metal absorbing the bumps.
 

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