Honestly, even stock is fine, with reinforcement plates as insurance (not even likely needed with stock like spring rates). Though the life span on OE might be less, but the cost is much less too.
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DO NOT BUY ECS Ultimate Rear Shock Mounts - JUNK ALERT
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DD: /// 2011.5 Jerez/bamboo E90 M3 路 DCT 路 Slicktop 路 Instagram
/// 2004 Silvergrey M3 路 Coupe 路 6spd 路 Slicktop 路 zero options
More info: https://nam3forum.com/forums/forum/m...os-supersprint
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Screw ECS. Clearance is the only section I go to. Even that has been full of garbage for a while.This is my Unbuild Journal and why we need an oil thread
https://nam3forum.com/forums/forum/m...nbuild-journal
"Do it right once or do it twice"
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Update: hadn't touched the car for months. Finally pulled it apart, and the RSM failure was catastrophic due to poor design; the monoball was actually fine. Urethane bushing completely disintegrated itself on the top side; shavings all over the top of the shock tower inside the trunk and what was left of the bottom half was only contained by the washer/cover. Car sounded like someone was in the trunk with a baseball bat.
So heads up if you have these they WILL eventually fail.
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I鈥檓 also a victim of this crap ECS Tuning part , passenger side failed after 11k miles. It鈥檚 been installed for about 6 years- the occasional clunk started about 18 months ago and total failure about a week ago. I stopped buying parts from ECS in 2022 so this is the final nail in the coffin for my relationship with ECS. Unfortunately it seems many of the BMW parts e-tailers are owned by the same PE firm so best I can do is to trust other OEM+ parts.
Last edited by azmirm5; 01-03-2026, 02:24 PM.
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I have the RE's, they seem to be a good stock-like design.
Meyle has their Heavy Duty version as well, that honestly might be the best all-round choice for a street car.
But yeah, fuck ECS stuff, I bought their vanos line a while back and immediately returned it after thinking twice about some Chinese shit responsible for HP engine oil.Last edited by Cubieman; 01-03-2026, 03:02 PM.2004 Silbergrau Metallic 6MT
Karbonius/OEM Snorkel/Flap/HTE Tuned
Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA
OE CSL Bootlid/AS SSK/TCK Vorshlag/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
RACP Plates/Vincebar/CMP/Turner RTAB/Beisan
2006 M6 Black Saphire SMG
Instagram
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Just so folks are aware Turner is now owned by ECS. I know many folks like the Turner front camber plates (I used to run them a long time ago) I would be suspect of any Turner branded products as well as they seem to be moving the manufacturing of the original Turner designs to low budget facilities.
Once in a while I will buy factory or OEM parts from ECS but I now avoid any ECS/Turner branded items at app cost!
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RE are fine. They're actually a copy of TCK (who used to produce them for Rogue actually).
Out of necessity I got some stock RSM's at the time of this thread because they were cheap and local. No issues, shocking I know. Since this experience I have exclusively bought parts from FCP, RM, and AutohausAZ as my meager middle finger to ECS and the joy I get has been pleasantly matched by the quality of service from those retailers. As someone with three old BMW's and undiagnosed levels of OCD, I'm not the worst customer to have..
Also LOL at the new price of these Ultimate POS's.... $408 now!Last edited by jvit27; 01-03-2026, 04:21 PM.
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Holy Smokes, thanks for the heads up man
I been chasing a rattling at the back of mine today
I know my RACP is cracked and just thought the noise was the panel shifting around
Didn't think twice about the whitelines i installed 18 months ago
I will rip them out tomorrow and inspect
Any links or part numbers please for Meyles ?
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Originally posted by BL92 View PostHoly Smokes, thanks for the heads up man
I been chasing a rattling at the back of mine today
I know my RACP is cracked and just thought the noise was the panel shifting around
Didn't think twice about the whitelines i installed 18 months ago
I will rip them out tomorrow and inspect
Any links or part numbers please for Meyles ?2004 Silbergrau Metallic 6MT
Karbonius/OEM Snorkel/Flap/HTE Tuned
Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA
OE CSL Bootlid/AS SSK/TCK Vorshlag/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
RACP Plates/Vincebar/CMP/Turner RTAB/Beisan
2006 M6 Black Saphire SMG
Instagram
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If a Turner part was made before ECS bought it and has not been redesigned...probably OK. The monoball FCAB and RTAB have been OK so far for me...3 years? As an example, Turner redesigned the rear lower control arm. I would not buy that.Originally posted by eacmen View PostJust so folks are aware Turner is now owned by ECS. I know many folks like the Turner front camber plates (I used to run them a long time ago) I would be suspect of any Turner branded products as well as they seem to be moving the manufacturing of the original Turner designs to low budget facilities.
Once in a while I will buy factory or OEM parts from ECS but I now avoid any ECS/Turner branded items at app cost!
For camber plates, Vorshlag is the only answer and has been for the last 20 years. BY FAR...the most durable camber plate on the market. I wouldn't buy anything else from Vorshlag except for their camber plate.
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