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      05-07-2010, 09:51 AM   #1
GaryS
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Dinan Rear Shock Mount Kit - mini review

I haven't seen a review of Dinan's Rear Upper Shock Mount Kit, which is included with Dinan's Stage 1 - Stage 3 suspensions, and is also available separately. I got these mounts installed separately, after the rest of my suspension, so I can review the isolated change.

The rest of my suspension changes are BMW Performance springs, Koni FSD shocks, and M3 front control arms and swaybar. After all that was installed, the improvement in ride, feedback and handling was huge, but I still had a little bit of vagueness and bounce coming from the rear. I decided I'd try the Dinan rear shock mounts first and then some rear M3 bits if that didn't work. Well - here's the mini review - the Dinan rear shock mounts did work. They firmed up the rear so the bounce is gone, and the car now feels much more under control and balanced. There's no noise or harshness - the ride is actually more comfortable. Definitely recommended.

I don't know if Dinan makes or buys this part, but the Dinan price is $99/pair + 1.9 hours labor. At Speed Motorsports did the installation, and their work was perfect as usual. I don't have a picture - here's what the Dinan page says:

Quote:
The 10mm Rear Upper Shock Mounts replace the stock mounts and increase shock travel by 10mm for improved ride quality and performance. Ride-height is not affected, and an alignment is not required. Compatible with any stock or aftermarket shock

http://www.dinancars.com/store/produ...cat=792&page=1
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      05-07-2010, 10:44 AM   #2
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Got any pics? I've wondered just exactly what these things do. Do they just extend upward by 10 mm the point where the rear shock actually bolts on?

I'm trying to rationalize why that would make that much of a difference?

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      05-07-2010, 11:08 AM   #3
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Sorry, I don't have a picture. The shop ordered and installed these mounts for me, so I never saw them. The Dinan site doesn't show a picture either.

Edit: Still can't find a pic of the Dinan parts, but to give you an idea, here's the Rogue Engineering Rear Shock Mount Set. Rogue says,

Quote:
The factory BMW rear shock mounts are generally a little soft, to provide the most possible acoustically dampening in the vehicle. However, design precludes them from being stout enough to withstand the rigors of aftermarket suspension, or even badly damaged roads.
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Last edited by GaryS; 05-07-2010 at 05:39 PM.
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      05-19-2010, 01:51 AM   #4
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Quote:
Originally Posted by GaryS View Post
Sorry, I don't have a picture. The shop ordered and installed these mounts for me, so I never saw them. The Dinan site doesn't show a picture either.

Edit: Still can't find a pic of the Dinan parts, but to give you an idea, here's the Rogue Engineering Rear Shock Mount Set. Rogue says,
Those are the E36/46 RSM's. The E8x and E9x are just upper and lower bushings. You can make them out or high durometer urethane. Haven't tested any to see if they actually make a difference. What makes a huge difference is the M3 rear lower camber link conversion, it removes the big rubber saddle the rear dampers sits in and greatly improves damper reaction time. However, you will need to purchase M3 rear dampers as well for this conversion.
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      06-02-2014, 05:37 PM   #5
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Just ordered these. I have some pretty bad roads out here in NYC (Brooklyn to Long Island). Based on what Dinan says, and this thread, sounds like money well spent vs, the OEM ones. There doesn't seem to be a difference between OEM sport/performance and M3.
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      06-02-2014, 07:02 PM   #6
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Quote:
Originally Posted by d3l0n View Post
Just ordered these. I have some pretty bad roads out here in NYC (Brooklyn to Long Island). Based on what Dinan says, and this thread, sounds like money well spent vs, the OEM ones. There doesn't seem to be a difference between OEM sport/performance and M3.
Can you send me a pic of the mounts. I have Dinan stage 3 suspension. My rear upper mounts is torn to shreds. I don't know if I need to order mounts from Koni, OEM BMW or Dinan. They are so torn up I can even tell if it's the OEM ones I have. PM me. Thank you.
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      06-02-2014, 11:33 PM   #7
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I installed these along with the Bilstein B12 pro-kit and M3 rear subframe bushings. I have been extremely happy with this combo.
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      06-02-2014, 11:48 PM   #8
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Quote:
Originally Posted by justanothrgi View Post
Can you send me a pic of the mounts. I have Dinan stage 3 suspension. My rear upper mounts is torn to shreds. I don't know if I need to order mounts from Koni, OEM BMW or Dinan. They are so torn up I can even tell if it's the OEM ones I have. PM me. Thank you.
Sure will do. Hope to get it by Friday.

In your case, I'd recommend ordering from Dinan. the 10mm works unless you have struts where they are adjustable at the top (then that is the 12mm one). The 14 mm is for EDC.

Since lowering my suspension, although Its recommended to replace whenever you are switching out your suspension, this is the 2nd time or 3rd I have to do it since lowering my car. Roads are bad out here and the rear driver side always seems to get messed up.

I also asked dealer twice about differences between non-sport, sport, bmw performance, and m3. I think I was told that the BMW performance one was bigger, but that was the last one I had and a year later I have to replace it.

Also the bumpstop would be shredded. To me, it was obvious the OEM wasn't strong enough. Need to find a good bumpstop, Dinan doesn't sell theirs separate.
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      06-07-2014, 01:56 PM   #9
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Here are pics didn't install yet. Waiting for z4 bump stops
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      06-07-2014, 03:01 PM   #10
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Quote:
Originally Posted by d3l0n View Post
Here are pics didn't install yet. Waiting for z4 bump stops
I have em installed with my konis and swift springs.
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      06-07-2014, 03:01 PM   #11
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Awesome. Yea... My Dinan suspension kit def came with the Dinan mounts. I didn't know this since it was installed by previous owner. I replaced it with a stock upper mount and could feel it wasn't the same.

Called Dinan and the coolest part was they sent me new replacement rear kit for both struts free of charge. Now that's is an awesome freebie.
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      05-21-2015, 04:29 PM   #12
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Has anyone tried the front Dinan bump stops?
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      05-23-2015, 01:39 PM   #13
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To the OP, get the M3 rear subframe bushing in ASAP. Will be one of your biggest changes yet.
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      05-24-2015, 01:44 PM   #14
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Looks like an alternative option, slightly less expensive

http://www.motorsport-tools.com/powe...ount-10mm.html
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      05-28-2015, 11:09 PM   #15
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Quote:
Originally Posted by uberschnell View Post
Looks like an alternative option, slightly less expensive

http://www.motorsport-tools.com/powe...ount-10mm.html
I have those. Seem to work well, but I put them on with Koni Yellows and the M3 camber link conversion at the same time, so hard to tell which part(s) helped.
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