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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Swift Spec-R springs on e92 328i



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      05-15-2019, 05:53 PM   #1
tom.gnade
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Swift Spec-R springs on e92 328i

I recently installed Swift Spec-R springs on my car. I have an e92 328i M-sport with 19" 313 wheels. I also just today dumped my run-flats for Contis. These springs happen to be a "version 2" that Swift said will sit slightly lower in front than their standard 335i springs.

The ride is so much better - smoother and tighter at the same time. The car accelerates quicker, and also has less understeer. It's a big enough change that I'm going to have to get used to the way it handles now!

I suppose they may settle in a bit more, since it was just up on a jack, but currently the ride height is 7/8" lower in front, and about 1/2" lower in the rear. I did also replace all the spring pads, dust boots, and the front bump stops with part number 31332225377. I think the car sits just about right now, and the ride is great!





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Last edited by tom.gnade; 05-15-2019 at 06:03 PM..
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      05-15-2019, 06:05 PM   #2
tom.gnade
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I don't know why but the post doesn't show any of the pictures I'm attaching. Trying them as links instead of images.

https://drive.google.com/open?id=1YD...Qq-XOsnJ7kZjJh

https://drive.google.com/open?id=1jL...BkoCDltbeP-Sh7

https://drive.google.com/open?id=11T...ZwcCouO8i4ynMa
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      05-16-2019, 12:50 PM   #3
Volasko
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Sweet drop, looks perfect!
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      05-20-2019, 04:06 PM   #4
martinm0
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Looks great! I'm guessing you are still on your OEM sport struts? How many miles do you have on these? Presuming you didn't change them out.

Would you measure grown to fender, or fender to center cap on wheel? I need to update my suspension as well, but I may need to keep it as high as possible for winter driving this up coming season.

(Side note - my 2008 328xi handles way better than my 2011 335i with sport suspension. Turn in was much better, and the 335i has all kinds of issues on uneven surfaces. I expect to find some bushings that need updating, even though the car is only at 39k miles. It's twitchy and unstable at speeds over 60mph on uneven surfaces.)

Having added Koni Yellows to my 328xi, I know the 335i can be better. Just surprised that the car with low miles is so unstable. Rear end moves side to side over bumps like it's on a slide rail. And there's lots of chassis flex as well.
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      05-21-2019, 11:20 AM   #5
tom.gnade
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Yes, I left the M-sport shocks in place. They have 50k miles on them. When they're shot, I'll replace them, but figured I could probably get another 20-30k out of them. From the peak of the fender arch to the ground measures 24 7/8" all the way around.
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