[Skyhigh]

Fair point. That's however the only sensible alternative to stock adaptive. Any fixed stiffness dampers/coilovers are IMO a downgrade from a stock adaptive suspension. Which again IMO, at least in LCI, is not bad at all! I am pretty happy with it and I have been assured it will get even better once I get rid of the RF tires

[Flump]

Originally Posted by Skyhigh

No. Why?

I have been going through a bunch of different threads on this site about different springs/shocks combos and some people say you NEED to do them, others seem to have not and been just fine. This is even with the Dinan or Eibach springs which seem to have roughly the same drop as the ACS.

I'm an LCI F36 xdrive with adaptive, and the ACS springs seem like exactly what I want. I want just a mild drop while keeping roughly the same ride quality, which on Chicago roads is needed. I just didn't know if I should be getting some different bump stops as well. Just wanted some opinions from people who actually have them.

[erock9969@yahoo.com]

Anyone here have a 320i xdrive lowered with H&R super sport that can speak to the ride quality? I'm trying to decide between the eibach prokit vs H&R supersports.

[rob21sf]

Originally Posted by erock9969@yahoo.com

Anyone here have a 320i xdrive lowered with H&R super sport that can speak to the ride quality? I'm trying to decide between the eibach prokit vs H&R supersports.

I do, with Bilstein B6 all around. Overall look on the car is spot on not too lowered looking and no rubbing issues with 255 squared set up. The ride is somewhat stiffer than OE but then again I'm running Yokohama ADVAN performance tires which are a bit harder to begin. Anytime you lower the car you will feel the bumps more than the OE springs but for the look and the handling it's worth doing.

[Stevro]

Originally Posted by kmall10

My xdrive lowered using h&r springs

Which ones did you use for this?

[Stevro]

Originally Posted by kpgray

I just installed the Eibach E10-20-031-18-22 xDrive lowering springs on my 2019 440i over the weekend. I wanted to thank FaRKle for all the support and the great video walking the process through. See my post "DIY Springs/Shocks Guide & Tool List F3x/F2x" for the video and tool list. Here is before and after:

BEFORE:
Attachment 2302164

AFTER:
Attachment 2302165

Looks freakin' awesome. How's the ride?

[Stlblues]

Originally Posted by rob21sf

I do, with Bilstein B6 all around. Overall look on the car is spot on not too lowered looking and no rubbing issues with 255 squared set up. The ride is somewhat stiffer than OE but then again I'm running Yokohama ADVAN performance tires which are a bit harder to begin. Anytime you lower the car you will feel the bumps more than the OE springs but for the look and the handling it's worth doing.

Out of curiosity, what are your wheel specs with those tires?

[kpgray]

Originally Posted by Stevro

Looks freakin' awesome. How's the ride?

The ride is ever so slightly stiffer with an added bonus of quicker reacting springs combined with the lower center of gravity. These provided me with tighter turning with less body sway and I feel more confident in my driving. My vehicle has adaptive suspension and in sport mode, it rides with similar stiffness as the M4, only not the horse power or the steering feel of the M, however, half the insurance of the M! I would recommend these springs to anyone looking to close up the excessive wheel gap of xDrive without the harshness that can be expected with most aftermarket springs. These are great for a daily driver not being tracked and for locations that do not have the smoothest roads.

[Stevro]

Originally Posted by kpgray

The ride is ever so slightly stiffer with an added bonus of quicker reacting springs combined with the lower center of gravity. These provided me with tighter turning with less body sway and I feel more confident in my driving. My vehicle has adaptive suspension and in sport mode, it rides with similar stiffness as the M4, only not the horse power or the steering feel of the M, however, half the insurance of the M! I would recommend these springs to anyone looking to close up the excessive wheel gap of xDrive without the harshness that can be expected with most aftermarket springs. These are great for a daily driver not being tracked and for locations that do not have the smoothest roads.

Thanks. I hear you on the M4 insurance! I think I'll go for these. I'll post an update when I do.

[rob21sf]

Originally Posted by Stlblues

Out of curiosity, what are your wheel specs with those tires?

I got Apex EC7 with 18x9 +31 all around. No spacer too and flush to the fender,

[Stlblues]

Originally Posted by rob21sf

I got Apex EC7 with 18x9 +31 all around. No spacer too and flush to the fender,

Thanks for the response. I am looking at the ARC8 in in the same size and have been debating the 255 bs the 245 that Apex recommends. I'm lowered on Dinan springs and by all indications the 255 should work which is what I prefer given mine is xdrive. I really don't want to do crazy camber or other mods to "fit" them

[Logicoeur]

Originally Posted by Stlblues

Thanks for the response. I am looking at the ARC8 in in the same size and have been debating the 255 bs the 245 that Apex recommends. I'm lowered on Dinan springs and by all indications the 255 should work which is what I prefer given mine is xdrive. I really don't want to do crazy camber or other mods to "fit" them

18x9 ET 32 255/40-18

I'm at stock xdrive height. If you are low enough you will definitely rub on deep compression. However xdrive can't even function at those sorts of drops without snapping/popping axles. So camber would be the least of your issues if you are that low.

[Stlblues]

Originally Posted by Logicoeur

18x9 ET 32 255/40-18

I'm at stock xdrive height. If you are low enough you will definitely rub on deep compression. However xdrive can't even function at those sorts of drops without snapping/popping axles. So camber would be the least of your issues if you are that low.

Thank you for the response and the pictures. Your car looks good and the fitment looks right. I am aware of the issues with going too low with xdrive. The Dinan springs only drop it about an inch and that's plenty for me.

[Der2z]

All,

I got my Eibach 6-22 kit paired with Koni Special Active Struts and Shocks on my 2016 435i Gran Coupe. IN LOVE. It rides so nice and looks great! Thank you for everyone's help.

I did notice that the front drivers side sits 1/4 inch higher than the front passenger side. Its quite noticeable to me. I checked to make sure the spring was in the pocket, the strut int he knuckle etc and everything looks great.

Any ideas?

Thanks!
Dereck

[5mall5nail5]

Originally Posted by Der2z

All,

I got my Eibach 6-22 kit paired with Koni Special Active Struts and Shocks on my 2016 435i Gran Coupe. IN LOVE. It rides so nice and looks great! Thank you for everyone's help.

I did notice that the front drivers side sits 1/4 inch higher than the front passenger side. Its quite noticeable to me. I checked to make sure the spring was in the pocket, the strut int he knuckle etc and everything looks great.

Any ideas?

Thanks!
Dereck

There could be something wrong, but I have noticed this since BMWs in the early 90's


Even my F30 2WD on H&R super sports seems to sit about 1/16 - 1/8" higher on drivers side. Spring fully seated, nub sticking through the trailing arm, no issues at all.

[Logicoeur]

Likely accounting for the driver so it evens out?

[Variante Alta]

Originally Posted by erock9969@yahoo.com

Anyone here have a 320i xdrive lowered with H&R super sport that can speak to the ride quality? I'm trying to decide between the eibach prokit vs H&R supersports.

I have installed H&R Sports on my 2017 F31 diesel xdrive...very nice drop (looks miles better) and noticeably stiffer ride. It is awesome on the highway and through corners but sharp bumps can be nasty if they're more than average size (I have 19" 403Ms and Bridgestone RFTs). I expect that losing the RFTs would help as the sidewalls are so hard but it might also lead to a greater chance of wheel damage. I can't imagine Super Sports on anything but very smooth roads and the impacts on them would be spine crushing based on my experience with the Sports. I have not replaced the stock shocks which may also provide some better insurance against the nastiest of the bumps. Overall I'm quite pleased and it feels more like a BMW should feel IMO. It would be hard to go back to the somewhat sloppy OEM springs.

[SteveInfante]

Originally Posted by Variante Alta

I have installed H&R Sports on my 2017 F31 diesel xdrive...very nice drop (looks miles better) and noticeably stiffer ride. It is awesome on the highway and through corners but sharp bumps can be nasty if they're more than average size (I have 19" 403Ms and Bridgestone RFTs). I expect that losing the RFTs would help as the sidewalls are so hard but it might also lead to a greater chance of wheel damage. I can't imagine Super Sports on anything but very smooth roads and the impacts on them would be spine crushing based on my experience with the Sports. I have not replaced the stock shocks which may also provide some better insurance against the nastiest of the bumps. Overall I'm quite pleased and it feels more like a BMW should feel IMO. It would be hard to go back to the somewhat sloppy OEM springs.

What was the part number for your springs?

[Sad N26]

Hey folks, I just had the Dinan Sport Springs, bump stops, and a Megan Racing front strut tower bar installed on my 2016 328i X-Drive (base model). Overall, I'm happy with it. I don't think there was any drastic change in handling performance, but I wan't looking for race-car handling anyway. I wanted to reduce the wheel gap and get rid of some body roll and I accomplished that. Turn-in is noticeably improved and stability at high speeds in curves and turns gives me more confidence in the car.
(NOTE: I have 17" BMW rims with 225/50R-17 Continental ContiProContact run-flat tires. Lame, I know, but I'll upgrade next year to a 225/45 or 235/40-18 setup. That might improve handling a little bit more.)

The first 4 pics are stock height, the rest are after the parts were installed.

[FastF30]

Does anybody know about ST-X coilovers? looking to go that route.. or might get this BMW B14 PSS Coilover Kit - Bilstein 47-264632 ... Bilstein has a lifetime warranty compared to 5 years ST-X

[chambo622]

Originally Posted by Variante Alta

I have installed H&R Sports on my 2017 F31 diesel xdrive...very nice drop (looks miles better) and noticeably stiffer ride. It is awesome on the highway and through corners but sharp bumps can be nasty if they're more than average size (I have 19" 403Ms and Bridgestone RFTs). I expect that losing the RFTs would help as the sidewalls are so hard but it might also lead to a greater chance of wheel damage. I can't imagine Super Sports on anything but very smooth roads and the impacts on them would be spine crushing based on my experience with the Sports. I have not replaced the stock shocks which may also provide some better insurance against the nastiest of the bumps. Overall I'm quite pleased and it feels more like a BMW should feel IMO. It would be hard to go back to the somewhat sloppy OEM springs.

Did you change the bump stops at all?

I have the opportunity to buy some H&R Sports for my F31 at a good price, but I'm concerned by the reports of slamming and rough ride and may shell out for the Eibach's.

[skier_du]

Originally Posted by chambo622

Did you change the bump stops at all?

I have the opportunity to buy some H&R Sports for my F31 at a good price, but I'm concerned by the reports of slamming and rough ride and may shell out for the Eibach's.

No experience with the H&R springs, but I've read reports of them being a little hard on bumps also. However, I ran Swift Spec-R and Bilstein B8 for a couple years. Attached picture is from then. That setup is pretty low. Almost tucked tires all around. I had stock shock mounts and never had an axle problem. I really don't think there's as much problem with lowering and xDrive as some people think. The problem mostly comes from adding camber the wrong way (lca rather than camber plates).
I ran shorter rear bump stops and trimmed the B8 internal bump stops on the front shocks. Before trimming the fronts, I was practically driving around on them all the time. The ride was a little harsh on bumps of any kind. When I got in there, the front bump stops had started to fall apart. After trimming the ride improved greatly over small and large bumps. From reports I read, if you lower less than an inch, you can probably be ok with stock bump stops. But any shorter and it's recommended to have shorter ones to not be in them too much. There's a thread with the exact bump stops and part numbers if you search. If you're sticking with stock shocks, than perhaps keep the lowering less than an inch. If you want more lowering, you'll need shocks too or it won't ride well. The factory shocks will not be able to control the springs well and the lowering will be out of the factory shock range. But that's a general recommendation.