[cailas]

So 12-15mm combination is the best with H&R springs? I will use 403m wheels.

[richb811]

Originally Posted by Geezer

Can you post or start a new thread when these can be ordered thanks.

Absolutely!

[Jaymax85]

Rich,

What is the timeline for availability of these struts?

Originally Posted by Rich@GTBPerformance

Based upon Bilstein's latest information, the Rear B8 shocks are going to be the same for both the F30 RWD and X-Drive models.

The fronts however are going to be different and are currently in pre-production.

Here are the part numbers assigned currently to the Front left and front right F30 X-Drive Shocks :

Front :

35-207214
35-207504

Rear :

24-217873

[richb811]

Originally Posted by jawwadh

Rich,

What is the timeline for availability of these struts?

Jawwadh

They are in Pre-Production. I've left a voicemail with my Bilstein rep to see how long we are looking at till they are released.

I should have an answer within a day or two

[ghostchili]

Originally Posted by cailas

So 12-15mm combination is the best with H&R springs? I will use 403m wheels.

I'd shoot burger tuning an email just to be on the safe side. But if your wheels look like mine on the before shot I'd say yes.

[Jaymax85]

Originally Posted by Rich@GTBPerformance

Jawwadh

They are in Pre-Production. I've left a voicemail with my Bilstein rep to see how long we are looking at till they are released.

I should have an answer within a day or two

thanks looking forward!

[Happy Williams]

Originally Posted by Medal

As I mentioned, I had H&R sport springs done today and wow what a difference...almost no body roll and it's not bouncy just much stiffer. This made all the difference for me! I also did 13mm spacers in the front and rear. I'll take more pics soon as it's already too dark out.

Hi, looks great, exactly what I'm after over here in the uk on my 335d, can anyone help me please??!! Will this work on my motor? Everyone seems very scared of doing anything in the uk, maybe I'll be the first!! Lol

Dan.

[T.Maas]

What spacers would be best if using the standard 17" wheels? Still 12/15? I don't want any rubbing with hard driving..

[Geezer]

Originally Posted by Rich@GTBPerformance

Jawwadh

They are in Pre-Production. I've left a voicemail with my Bilstein rep to see how long we are looking at till they are released.

I should have an answer within a day or two

Any update? Group buy? I have the HRs sitting in the basement would love to install shocks at the same time.

[F87_LCI]

Installed the H&R Sports about two hours after I picked up the car from the dealership, so I can't really comment on the difference in the "before and after", however I can give a short review on how the car rides so far. The pic below is how the car looked just after getting the springs installed and I then swapped the 20" 405s out for some 18" with Dunlop 4D winters so I've been running on those and I assume the ride will be a bit harsher once the 20's are back on for summer.

I also don't drive the car in anything but sport/sport+ mode...in fact I am going to have it coded so that it starts up in Sport+ mode. So again can't comment on the Comfort mode ride. Coming from a C350, so I've had enough "comfort" over the last 4 years, lol.

Ok so all that said...the ride is stiff enough, but I still feel some body roll on on/off ramps. I will also say that the car does start to feel "bouncey" on roads with extended unevenness or undulating pavement. Luckily I don't drive on many roads like this, so I don't experience it that often.

As for clearance, someone in this thread said it...if you've driven a lowered car before than you just know how to drive one (I.e. Railroad tracks, speed bumps, driveways, etc.) - I had a WRX a few cars ago also lowered on H&Rs. Never had an issue with the stock shocks.

I have only bottomed out the shocks once when I hit a pothole I didn't see (filled with water). And I haven't scraped the front lip yet.

I feel like the suspension could still be improved so I'm thinking of swapping them out for a set of KWs come summer. Just waiting to see a few more reviews on them from guys with xDrive and DHP. Anyway here's a shot of the car...it does look better than stock height for sure.

[overkill1125]

Bouncey is not what I wanted to hear. It's the worst when its bouncey due to spring upgrades. Had that on my previous car and would not want to have that same feeling on a beemer.

[cjack]

Originally Posted by LagunaSecaBlue

Installed the H&R Sports about two hours after I picked up the car from the dealership, so I can't really comment on the difference in the "before and after", however I can give a short review on how the car rides so far. The pic below is how the car looked just after getting the springs installed and I then swapped the 20" 405s out for some 18" with Dunlop 4D winters so I've been running on those and I assume the ride will be a bit harsher once the 20's are back on for summer.

I also don't drive the car in anything but sport/sport+ mode...in fact I am going to have it coded so that it starts up in Sport+ mode. So again can't comment on the Comfort mode ride. Coming from a C350, so I've had enough "comfort" over the last 4 years, lol.

Ok so all that said...the ride is stiff enough, but I still feel some body roll on on/off ramps. I will also say that the car does start to feel "bouncey" on roads with extended unevenness or undulating pavement. Luckily I don't drive on many roads like this, so I don't experience it that often.

As for clearance, someone in this thread said it...if you've driven a lowered car before than you just know how to drive one (I.e. Railroad tracks, speed bumps, driveways, etc.) - I had a WRX a few cars ago also lowered on H&Rs. Never had an issue with the stock shocks.

I have only bottomed out the shocks once when I hit a pothole I didn't see (filled with water). And I haven't scraped the front lip yet.

I feel like the suspension could still be improved so I'm thinking of swapping them out for a set of KWs come summer. Just waiting to see a few more reviews on them from guys with xDrive and DHP. Anyway here's a shot of the car...it does look better than stock height for sure.

Your car looks great.

[richb811]

Originally Posted by Geezer

Any update? Group buy? I have the HRs sitting in the basement would love to install shocks at the same time.

Bilstein USA is playing coy with the release date. They said the German version would be out in August, how soon it makes it to the US after that, I couldn't say.

[Jaymax85]

Any updates on the bilsteins for the xdrive?

[richb811]

Originally Posted by jawwadh

Any updates on the bilsteins for the xdrive?

Still nothing on the US side Jawwadh

I check weekly, they'll be up on our site as soon as they are available

[Jaymax85]

Originally Posted by Rich@GTBPerformance

Still nothing on the US side Jawwadh

I check weekly, they'll be up on our site as soon as they are available

thanks!

[overkill1125]

Sway Bars


Front/Rear

Diameter

Adjustable

Note

Part Number

Sug. Retail



Front 28mm Yes Adj. 2 hole 70878-6 $459.00 Each
Rear 20mm No 71878 $349.00 Each

[Malloy]

FYI, I also work in the car parts biz and they are telling me mid Nov. Pretty firm date this time

Originally Posted by Rich@GTBPerformance

Still nothing on the US side Jawwadh

I check weekly, they'll be up on our site as soon as they are available

[smithf80]

So what's the deal with these? Are they too bouncy? What does that realistically mean?

I see TONS of these for sale used, why are so many people ditching them?

[t20lau]

Originally Posted by smithf32

So what's the deal with these? Are they too bouncy? What does that realistically mean?

I see TONS of these for sale used, why are so many people ditching them?

Interested to know the same thing!

[bahasad]

Originally Posted by smithf32

So what's the deal with these? Are they too bouncy? What does that realistically mean?

I see TONS of these for sale used, why are so many people ditching them?

As someone who has the Dinan springs (which are less stiff and have higher ground clearance), I can only imagine how uncomfortable these might be over the rough roads in the winter now (the Northeast and Great Lakes area). My Dinan springs are pretty stiff and I'm really wanting a set of coils but don't want to keep going back and forth with paying someone to swap out.

My recommendation if you can, get a BC coil or KW coil set. Or pair these with bilstein shocks. You'll be much happier with the comfort. If not go with Dinan + bump stops. The ride height/spring rate will be much better for the terrible roads in New York than these

[LastFrontierBimmer]

I had the H&R sport springs installed on my '14 435i xDrive not long after purchase. The resulting ride height put the xDrive where I think a sport coupe "should be," while retaining the winter driving advantages of all-wheel-drive. There is about 1" of wheel gap front & rear. Regarding ride, in my opinion the stock dampers are too soft for the springs. Both compression and rebound happen a bit too quickly on bigger rolling frost heaves and bumps. It's not horrible, but I personally would like more damping to eliminate the quick "bounce back" after bigger compressions. Some sharper bumps immediately produce a "thud" - possibly a product of the progressive spring rate with the light damping of the stock struts.

Recently I hit a monster pothole - a product of the very strange freezing/raining/thawing cycles we're having here this winter. It was horrible and I put a slight flat spot on both driver-side winter wheels (tire beads are okay) and broke the lower tab on the front strut, causing the strut to slide in the lower pinch bolt/clamp and dropping the ride height about 3/4" on the driver front.

I'm wondering if I would have sustained such damage had I been running the taller & softer stock springs. My guess is I would have, as it was an exceptionally bad pothole. I'm deciding now whether to replace the stock struts and shocks with Bilstein B8s, which are supposed to be 20% stiffer than stock hence, theoretically better suited to the H&R springs; or, go back to the stock springs with an OEM replacement strut.