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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > Which Springs with Koni Sport
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      07-13-2018, 01:12 PM   #1
Kaps335i
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Question Which Springs with Koni Sport

What springs are a good match with the Koni Sport shocks/struts for a 2013 335i xDrive? I only want moderate lowering. Don't want the tires up to the wheel well.

Some back story. I've been trying to figure out what setup I want for about a month now. So many people say different things that I don't know what is accurate. I was originally going to get the Dinan springs since they are only a .75" drop. Some people claim the Dinan drop puts the tires up into the wheel well. I ended up deciding on the Eibach Pros, but then I hear that they will sag. I spoke with a performance shop, but they are also a Dinan dealer, and of course they recommend the Dinan setup which is only Koni struts that Dinan sells. Meaning Dinan turned the knob to what they feel is the best setting. But Dinan also recommends keeping the stock shocks in the rear of the car. I don't know how many people would agree with that when you can have adjustable Koni's in all four corners.

I just want to replace the shocks, springs, and sway bars to improve handling and get rid of the body roll. I don't want an overly stiff setup that is going to bounce all over the place on NJ weathered roads, and don't want the car dropped very low.
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      07-13-2018, 04:41 PM   #2
cfm56d7b
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What's your budget for this project?

If considering springs only, there isn't any mechanism to adjust the suspension height after the fact. Springs settle as well.

For more precise range of the suspension height, coilovers are really the only option.

Coilovers with Individually adjustable dampen / rebound controls will give you more options to accommodate less than perfect NJ roads.
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      07-13-2018, 08:11 PM   #3
Kaps335i
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I am not looking to adjust suspension height. I just want to make sure the springs that are installed with the Konis don't have a dramatic drop.
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      07-13-2018, 09:27 PM   #4
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Quote:
Originally Posted by Kaps335i View Post
I am not looking to adjust suspension height. I just want to make sure the springs that are installed with the Konis don't have a dramatic drop.
Was looking for Koni Sport myself few months back for my 335i xDrive. It's a struts set designed for lower spring (1" or more drops) and it's sold with Eibach sport spring in the full Koni set. Moderate lowering spring (Eibach Pro/ACS/dinan) will work but not optimal performance wise.
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      07-13-2018, 10:59 PM   #5
Kaps335i
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Quote:
Originally Posted by nickf30 View Post
Quote:
Originally Posted by Kaps335i View Post
I am not looking to adjust suspension height. I just want to make sure the springs that are installed with the Konis don't have a dramatic drop.
Was looking for Koni Sport myself few months back for my 335i xDrive. It's a struts set designed for lower spring (1" or more drops) and it's sold with Eibach sport spring in the full Koni set. Moderate lowering spring will work but not optimal performance wise.
The kit says up to 40mm, not 1" or more. Not to mention Dinan sells the sports with their springs that are .75" as an optimal configuration.
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      07-14-2018, 08:46 AM   #6
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Eibach's are a moderate drop.
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      07-14-2018, 09:01 AM   #7
Kaps335i
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Are there any aftermarket springs that don't lower the car at all?
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      07-15-2018, 02:02 AM   #8
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how about a set up like this? it says for F30 335i X-drive. although it is not height adjustable seems like a good price for a strut/spring combo. it maybe worth inquiring about. i think the pic shown is just a generic pic.

https://www.bavauto.com/bmw-1145-spo...waAmEAEALw_wcB
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      07-19-2018, 02:20 PM   #9
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Pretty sure Dinan does not "recommend" leaving the stock rear shocks when going with their springs especially if they are non-dhp. The non-dhp stock rear shocks are the weakest point in the suspension setup and are extremely underdamped and way too soft with super slow rebound control, this is why the stock non-dhp suspension specifically on xdrive cars is so soft and floaty.

That being said, you really cannot go wrong with koni yellows and the dinan springs are a subtle drop and definitely dont tuck into the wheel wells or come even close.
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dinan, eibach, eibach pro kit, koni, koni shocks, koni sport, koni yellow

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