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      09-29-2021, 04:32 PM   #1
CanesM4
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H&R Springs for M4

I just got my H&R springs part #28616-2, which is for the M4. The rear springs have that part number on them but the fronts are part# 28616-1, which is for the M3. I'm guessing that the M3 and M4 share the same front springs? Can anyone verify this?I know I can call H&R but figured id ask here first, before sitting on hold.
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      09-29-2021, 04:42 PM   #2
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Yes, front end between M3 and M4 are the same.
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      09-29-2021, 04:59 PM   #3
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Quote:
Originally Posted by r33_RGSport View Post
Yes, front end between M3 and M4 are the same.
Thanks for the response
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      09-30-2021, 09:20 PM   #4
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wow I received mine and never checked. Will be installing them tomorrow with the spacers
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      10-01-2021, 12:48 PM   #5
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Quote:
Originally Posted by CanesM4 View Post
I just got my H&R springs part #28616-2, which is for the M4. The rear springs have that part number on them but the fronts are part# 28616-1, which is for the M3. I'm guessing that the M3 and M4 share the same front springs? Can anyone verify this?I know I can call H&R but figured id ask here first, before sitting on hold.
Not to scare you but H&R did this shit with the M8 too where they had mixed parts and I think (need to find the thread) where the member had them fix it. They had the front with one submodel and the rear another. (coupe vs vert)

tagging Ben as might remember

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Last edited by Vic55; 10-01-2021 at 01:09 PM..
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      10-01-2021, 01:05 PM   #6
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Quote:
Originally Posted by Vic55 View Post
Not to scare you but H&R did this shit with the M8 too where they had mixed parts and I think (need to find the thread) where the member had them fix it. The had the front with one submodel and the rear another. (coupe vs vert vs gc)

tagging Ben as might remember

r33_RGSport
Sounds like a big mess if so. Send ‘em back. Lots of good traditional springs and HAS now hitting the ground.
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      10-01-2021, 02:32 PM   #7
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Quote:
Originally Posted by mattburks View Post
Sounds like a big mess if so. Send ‘em back. Lots of good traditional springs and HAS now hitting the ground.
That is normal for manufacturer have different individual part# on the individual part and different part# as the set.

It is very simple to understand, that is because G80/G82 M3/M4 share the same front end.
Same as F91/F92/F93, front end are the same. Only the rear weight differentiate it due to less glass, more metal, or convertible components for convertible cars, and chassis length.
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      10-01-2021, 02:51 PM   #8
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Quote:
Originally Posted by CanesM4 View Post
I just got my H&R springs part #28616-2, which is for the M4. The rear springs have that part number on them but the fronts are part# 28616-1, which is for the M3. I'm guessing that the M3 and M4 share the same front springs? Can anyone verify this?I know I can call H&R but figured id ask here first, before sitting on hold.
Matches up what we have here. Installed yesterday with 12mm/10mm spacers. Included photo of parts for reference.

















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      10-01-2021, 06:17 PM   #9
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Here's mine with 15f/12r. Was easy to install front took 30 mins each side after watching evolves install video on YouTube. Rear was a little longer to remove the 21mm bolt from the bucket. Will post better pics after Sunday's cars and coffee
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      10-03-2021, 07:33 PM   #10
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Quote:
Originally Posted by kmscorrado View Post
Quote:
Originally Posted by CanesM4 View Post
I just got my H&R springs part #28616-2, which is for the M4. The rear springs have that part number on them but the fronts are part# 28616-1, which is for the M3. I'm guessing that the M3 and M4 share the same front springs? Can anyone verify this?I know I can call H&R but figured id ask here first, before sitting on hold.
Same part numbers you have are currenly installed on mine. No problems so far!
12F 10R.
I'm on 15/12 and ordered 18mm. Going to run 18/15 as I feel the 15/12 isn't as aggressive as I expected
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      10-03-2021, 08:20 PM   #11
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Same part numbers you have are currenly installed on mine. No problems so far!

12F 10R

sorry the pics are small and blurry, its just how they uploaded.
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      10-03-2021, 09:47 PM   #12
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Quote:
Originally Posted by ChrisRoman View Post
I'm on 15/12 and ordered 18mm. Going to run 18/15 as I feel the 15/12 isn't as aggressive as I expected
I've been thinking the same thing. Can't wait to see what it looks like.
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      10-04-2021, 03:37 AM   #13
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Quote:
Originally Posted by ChrisRoman View Post
I'm on 15/12 and ordered 18mm. Going to run 18/15 as I feel the 15/12 isn't as aggressive as I expected
Id probably look at either getting some mud flaps, or getting those back panels PPFd. Those front tires are going to fire some meteors at those back fenders.
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      10-05-2021, 11:15 PM   #14
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Quote:
Originally Posted by moproblems View Post
I've been thinking the same thing. Can't wait to see what it looks like.
I agree anyone with that setup 18/15 please post thanks!!!!

Last edited by Fugazii; 10-08-2021 at 10:17 PM..
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      10-06-2021, 10:11 PM   #15
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Drop looks really good.
How's the ride quality? Much stiffer? Bouncy?
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