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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > 335is suspension

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      01-05-2012, 11:42 PM   #1

Drives: Looking
Join Date: Oct 2006
Location: Canada, Toronto

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335is suspension

This is what I have found on Dinan web site:

"The 335is comes from the factory with some upgraded components over its little brother the 335i. One of these factory upgrades is the suspension system. More specifically the shocks and struts have been improved so much that they now meet Dinan standards."

I wasn't aware that the shocks and struts are different on 335is. Is that true?
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      01-09-2012, 04:20 PM   #2
cvc 22349a
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Drives: 335i
Join Date: Sep 2007
Location: SF Bay

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Probably. Early 335i dampers sucked! I'm sure BMW had them revalved. To know for sure, check the part numbers for both cars..
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS
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      01-10-2012, 01:49 PM   #3
First Lieutenant
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Drives: '11 335is DCT
Join Date: Mar 2010
Location: (north) Fullerton, CA

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I like the overall feel of my 335is as compared to my previous 335i coupe, however, I did transfer the M3 front and rear sway bars and installed rear sub-frame bushings. I am trying to keep as much OEM components before reverting to my boxed PSS10 (way too low). In regards to 335is dampers, I've noticed that Dinan has an upgrade to the rear shock (more of less the rear upper shock mount or "hat." Part number D110-0008. From Dinan: 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...

Harold from HPA on 335i suspension travel and bouncy rear:
Originally Posted by HP Autowerks View Post
...The Dinan rear shocks mount help a bit, but the same can be achieved by trimming the stock rear compression cushion/lower shock mount. On other issue the Dinan rear shock mount addresses is the the deflection in the mounts. Reduce this and the bounce will reduce as well. The Dinan mounts could be a little stiffer in my opinion, until the deflections in the shocks mounts are taken up the shocks don't start working. The big rubber saddle mounts at the bottom are another source of deflections. One important thing to remember is that these mount deflections are not controlled by the rear shocks at all, the same goes for the rear subframe mounts, these extra deflections are felt by the driver as bounce...
Any comments on modified rear upper shock mounts?
'11 BSM 335is
'08 Tiag 335i Coupe w/ Active Steering SOLD
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