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      02-23-2021, 01:31 PM   #1
slfsh36
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430i GC Spring Dilemma

So I seemed to have found a gap in product availability designed for my 2018 430i GC, RWD. After speaking to a rep with Eibach and a couple hours researching the web, I have no clear path for purchase.

I would like to lower my ride height but keep my EDC in tact. I know H&R has an offering but based on other members experiences, I’d like another option.

Can anyone speak on a solution for my setup? Someone with Eibach mentioned using a spring designed for the F30/32 chassis.

Thanks for the help!
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      02-23-2021, 01:43 PM   #2
SD Convert
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Quote:
Originally Posted by slfsh36 View Post
Someone with Eibach mentioned using a spring designed for the F30/32 chassis.
I believe the first step would be to determine the front/rear weight of your car and to find other vehicles with similar front or rear weights and compressed spring heights. Use the lowering springs from the appropriate end of those vehicles.

The other approach is to measure loaded and unloaded (out of car) spring height and have someone make you a custom set. This would probably be more expensive, but not by much.

Also, FaRKle! created a suspension frequency calculator that might help you to fine-tune/match the desired spring rates.

https://f30.bimmerpost.com/forums/sh....php?t=1721678

Good luck
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      02-23-2021, 02:15 PM   #3
slfsh36
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Quote:
Originally Posted by SD Convert View Post
I believe the first step would be to determine the front/rear weight of your car and to find other vehicles with similar front or rear weights and compressed spring heights. Use the lowering springs from the appropriate end of those vehicles.

The other approach is to measure loaded and unloaded (out of car) spring height and have someone make you a custom set. This would probably be more expensive, but not by much.

Also, FaRKle! created a suspension frequency calculator that might help you to fine-tune/match the desired spring rates.

https://f30.bimmerpost.com/forums/sh....php?t=1721678

Good luck

I’ll have a look, thanks for the guidance. 🙏🏽
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