Another Sport Springs on 328xi Question

dafuzzbudd · 10-25-2017, 02:05 PM

I'm looking to put 328i sport springs on my 2009 328xi coupe with OEM Bilstein B4's. I already picked up front D4 springs and will acquire D4 for the rear. I'm wondering if I will need anything else to make them fit together.

I've read though a lot of threads but I couldn't find a consensus. Change or cut the bump-stops? Do I need different strut tops on the front? This thread had some good points but no answers.
http://www.e90post.com/forums/showth...sport+on+328xi

My current plan is to try and combine the sport springs with the oem b4's in 2 weeks and report back what happens.

chris@strutmonkey · 10-25-2017, 10:04 PM

The D4 is not an ideal spring for the front of 328xi.

Quote:

Originally Posted by dafuzzbudd

I'm looking to put 328i sport springs on my 2009 328xi coupe with OEM Bilstein B4's. I already picked up front D4 springs and will acquire D4 for the rear. I'm wondering if I will need anything else to make them fit together.

I've read though a lot of threads but I couldn't find a consensus. Change or cut the bump-stops? Do I need different strut tops on the front? This thread had some good points but no answers.
http://www.e90post.com/forums/showth...sport+on+328xi

My current plan is to try and combine the sport springs with the oem b4's in 2 weeks and report back what happens.

Ke92v · 10-28-2017, 06:07 PM

What would the best springs be for a 328xi, looking to just do lowering springs

dafuzzbudd · 11-10-2017, 10:08 PM

Haven't gotten around to installing the springs yet due to chasing down a spark plug/ coil misfire. I estimate to try it out in a week or two.

Quote:

Originally Posted by Ke92v

What would the best springs be for a 328xi, looking to just do lowering springs

What I see is a lot of people praising a d5/d4 spring combo. My question is whether this can be done on an oem XI strut setup or if other parts need to be swapped or modified.

dafuzzbudd · 06-19-2018, 08:32 AM

I put the front D4 springs on with new struts and the handling is noticeably better. I used stock bump stops from the xi struts and did not cut them down.

I feel like it's sitting a bit higher than on the old set up. Is it possible the suspension is resting on the bump stops if they're too big?

10-25-2017, 02:05 PM	#1
dafuzzbudd New Member 0 Rep 6 Posts Drives: Black 328xi Join Date: Oct 2017 Location: Philly iTrader: (1)	Another Sport Springs on 328xi Question I'm looking to put 328i sport springs on my 2009 328xi coupe with OEM Bilstein B4's. I already picked up front D4 springs and will acquire D4 for the rear. I'm wondering if I will need anything else to make them fit together. I've read though a lot of threads but I couldn't find a consensus. Change or cut the bump-stops? Do I need different strut tops on the front? This thread had some good points but no answers. http://www.e90post.com/forums/showth...sport+on+328xi My current plan is to try and combine the sport springs with the oem b4's in 2 weeks and report back what happens. Last edited by dafuzzbudd; 10-25-2017 at 06:57 PM..
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10-28-2017, 06:07 PM	#3
Ke92v Enlisted Member 3 Rep 31 Posts Drives: 3 series Join Date: Jul 2017 Location: Canada iTrader: (0)	What would the best springs be for a 328xi, looking to just do lowering springs
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06-19-2018, 08:32 AM	#5
dafuzzbudd New Member 0 Rep 6 Posts Drives: Black 328xi Join Date: Oct 2017 Location: Philly iTrader: (1)	I put the front D4 springs on with new struts and the handling is noticeably better. I used stock bump stops from the xi struts and did not cut them down. I feel like it's sitting a bit higher than on the old set up. Is it possible the suspension is resting on the bump stops if they're too big?
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