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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 07-27-2011, 08:51 AM   #1
wdeerfield
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Rear Shock Mount Selection

Hi All,

Im looking to replace my RSM which are OEM. There seem to be a few options out there and i was wonder what the reviews were on them.

What ive found so far:

"like" OEM from BavAuto ($11.95/ea):
http://www.bavauto.com/shop.asp

Will fail no matter what. Several vendors state this. I have these and the rubber has separated on both of them. These are definitely not recommended if you have a lowered car.

Repair Shop RSMs ($39.95):
http://www.turnermotorsport.com/p-34...unts-pair.aspx

These are stronger but will eventually fail. TMS gives them a lifetime warranty though. Could be a good option to go with since its takes all but 10minutes to change

e30 Vert ($52.90):
http://www.turnermotorsport.com/p-36...unts-pair.aspx

"This is a BMW OEM shock mount, originally used on the E30 convertible models. Why E30? Because we have tried them all and the E30 cabrio mounts seem to hold up the best. However, all OEM rubber shock mounts will fail - it's just a matter of time." ~TMS Website

Rogue Engineering RSM ($99.95):
http://www.rogueengineering.com/rogue/RSM.html

Rebuildable, stronger design that carries a $100 pricetag.

Aluminum RSM from TMS ($99.95):
http://www.turnermotorsport.com/p-36...unts-pair.aspx

"These are the best rear shock mounts that we have found for the E30, E36, and E46! Featuring CNC-machined billet aluminum mounting base with a replaceable urethane bushing (replacement bushings are just $15 and are changed in minutes!). These mounts are excellent for either street or track because of their low NVH (noise, vibration, and harshness)." ~TMS Website. These seem promising but are they better than the Rogue mounts?

Solid Bearing Style RSM from TMS ($169.95):
http://www.turnermotorsport.com/p-24...mount-rsm.aspx

Not recommended for street cars, but just added this as whats available.

Meyle Heavy Duty Rear Shock Mount ($59.95):
http://www.bavauto.com/shop.asp (i hate their site since you cant direct link to product pages)

Rogue claims these fail as well. Has anyone used this with success?

Could you please post what you have and how long theyve last and on what suspension setup you are running?
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Old 07-27-2011, 11:09 AM   #2
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I would go with the Rogue Rear Shock Mounts as they are tested and proven time and time again.
Why go with one you know will fail, just to have to rebuy and reinstall; in the end it will just end up costing you more time and money.
Go with the Rogue that you can just install and forget about, and not have to worry and check every couple months.
We do carry the Rogue RSM which comes with adapters for 10mm as well as 12mm.

Contact me at 714.582.3330 x8005 with any questions or to place an order.

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Old 07-27-2011, 04:37 PM   #3
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I've always had good luck with OE + reinforcement plates.

PM dave96dcm and he will send you out two plates for about $25. He makes them out of stainless steal that is thicker than BMW/TMS plates, which are not stainless.
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Old 07-27-2011, 10:43 PM   #4
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I have Rogue, only others tested were OEM.
Rogue mounts are amazing, but maybe overkill for most.

Kubica - do you have a pic of where the reinforcement plates go with the OEM mount? Sounds like a good alternative
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Old 07-28-2011, 07:53 AM   #5
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Quote:
Originally Posted by Kubica View Post
I've always had good luck with OE + reinforcement plates.

PM dave96dcm and he will send you out two plates for about $25. He makes them out of stainless steal that is thicker than BMW/TMS plates, which are not stainless.
The reinforcement plates wont stop the center part of the bushing from tearing. I may just bite the bullet and go Rogue. Get what you pay for i guess. I had replaced the oem ones with the bavauto heavy duty ones, only lasted a year.
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Old 07-29-2011, 10:13 AM   #6
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I bought OEM RSMs and used them when I installed my new suspension. So far, after 10,000 miles, they are holding up just fine.
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Old 07-29-2011, 11:30 AM   #7
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Originally Posted by wdeerfield View Post
The reinforcement plates wont stop the center part of the bushing from tearing. I may just bite the bullet and go Rogue. Get what you pay for i guess. I had replaced the oem ones with the bavauto heavy duty ones, only lasted a year.
Where are you driving around where the HD ones only lasted a year???
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Old 07-29-2011, 12:01 PM   #8
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Im in upstate NY and i drive to VT during ski season. Worst part is, the roads i travel are pretty good.
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Old 07-29-2011, 12:02 PM   #9
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Old 07-29-2011, 12:42 PM   #10
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As soon as there is some play in the suspension, the mounts take a thrashing, so if you go through mounts quickly, maybe there is another cause than bad mounts.
When my Bilsteins were leaking, everything was getting hammered over bumps.
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Old 07-29-2011, 12:45 PM   #11
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I will give a +1 for the Rouge if you are interested in performance driving (autoX, track, ect) or if you are stupid low. Otherwise I suggest Meyle HD or OEM. Also +1 on the reinforcement plates. I had those on my e46 with stock mounts and at 100K they were still just fine.
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Old 07-29-2011, 03:43 PM   #12
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how would reinforcements plates keep the center section of the RSM from tearing? Im not stupid low but have h&r springs/bilstein sport shocks. I should probably just go with Rogues.
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Old 07-29-2011, 03:52 PM   #13
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Quote:
Originally Posted by wdeerfield View Post
how would reinforcements plates keep the center section of the RSM from tearing? Im not stupid low but have h&r springs/bilstein sport shocks. I should probably just go with Rogues.
The rubber tears from wear - its rubber not poly. Basic physics, in the e46 the sheet metal back there is thin and many people have done some real damage with the towers bending, cracking, ect. the reinforcement plates go underneath and basically add like 5mm of metal thickness to the top of the tower.
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Old 07-29-2011, 04:04 PM   #14
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The rogue mounts have the reinforcement plate on TOP, they mount the opposite way of all others, nuts on the underside of the car.
I like the fact that these will keep my rear towers in good shape and the bushing is easily replaced for $10.

I was having water leak in around the mounts into the trunk when driving in rain, even with new paper gaskets.
There was a little bit of corrosion here & there - minimal really but decided to
have everything removed, the underside of the shock towers cleaned, lightly sanded & primed. Also added some of that black goo, some may know it as 'Gummiphledge' or butyl something... Sealed it up tight, no more water leaks
Got it from my mechanic, the Porsche master. He was trying to sell me his Porsche GT3 RS for the low price of $110k! Every time i see that car i jizz in my pants lol

BTW, iphone auto correct used to drive me batty so I just shut it off lol
Took twice as long to cOmpose anything!
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Old 08-01-2011, 10:57 AM   #15
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So decided on OEM mounts from GAP along with new hardware and gaskets. Apparently Bilstein out of NC no longer handles warranties. Good thing TMS handles their own. Went with a new e46xi sport shock instead of trying to upgrade to e36m3s. will try those when these fail (which will probably be next year). Going to trim the bump stock .5in to see if that allows for more travel. Ordered 5mm rear spring pads as well to reduce the rake.

Thanks for the help guys.

Sorry MB, you guys are in Cali and i need to get this done by this upcoming weekend. Ill look to you guys for the Rogue RSMs in the future
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Old 08-02-2011, 01:16 PM   #16
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i....never got rsm's after my kw's....


i ain't worried lol
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Old 12-08-2011, 06:14 PM   #17
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I have a e46 convertible, supposedly it has it stronger or the same as the m3 convertible. Is the e30 vert better than the OEM e46 vert mounts? or what is better than the verts?
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Old 12-10-2011, 06:26 PM   #18
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i have Ground Control but comparing them to Rogue RSM that I installed on a friends car. I want the rogues now
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Old 12-10-2011, 07:05 PM   #19
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In the past I've used E30 Convertible Rear Upper Shocks Mounts on E30 318i's, 325's and on my 325ix, BUT on my 318is I used the Aluminum RSM Rear Shock Mounts with H&R Lowering Springs, Bilstein Sport Shocks, Urethane Bushings and Dinan Sway Bars. No failures with the aluminum mounts and the urethane bushings are easy to replace if need be. The E30 Convertible mounts have lasted more than 60,000 miles and normal driving, where as, in the 318is, they didn't last long since this car was driven very spiritedly, 40,000 miles on the Aluminum RSM mounts so far. These mounts are what I will use on my E46s when its time to replace.
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