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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > E92 X-Drive coupe Full Suspensions Refresh UUC/ISC



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      07-09-2016, 05:38 PM   #1
RickiBobby
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E92 X-Drive coupe Full Suspensions Refresh UUC/ISC

So I have 2009 335xi with about 500awhp on Hexon turbos and e60 tune on mhd. But of course the spongy suspension needs work. My first ailment was when my front sway bar link bushing wore out so it overlapped the sway bar and made a loud clunking noise when turning. What does that lead to? Front and rear UUC swaybars with front end links. My initial opinion of these, the rears are set to stiff and the front is one setting only. The links were approximately 4x the thickness as well as the bars of course. Very stiff from left to right. I now experience wheel hop if I power through or out of a turn. I have simple Nexxen sport tires on 19"s. Next I finally decided on coilovers and Im going with the ISC N1 set with Street Sport shock valving. I also have purchased the m3 Rear upper control arm kit made by trw as well as the install hardware plus a Megan racing front strut bar since my coilovers are fully adjustable damping and the oem strut braces get in the way of the adjusters. The final upgrade will be the new ecs tuning trailing arms with urethane bushings. Links to all parts are below.

I thought I would do a review since I dont see anyone with the ISC coilovers.

I will update once my m3 arms, strut brace and coilovers are installed.

http://store.uucmotorwerks.com/swayb...ly--p1323.aspx

http://iscsuspension-na.com/store/#!...egory=12617117

https://www.ecstuning.com/BMW-E92-33...ade/ES2622633/

http://www.meganracing.com/product_d...=1535&catid=35

https://www.ecstuning.com/BMW-E90-33...Arm/ES2777155/
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      07-10-2016, 07:02 PM   #2
AtlasM
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When did you get the UUC sway bars? I had tried to buy them recently but UUC kept having delays with getting bushings made for them. I ended up keeping my front xi bar and doing E93 M3 in the rear, adjustable end links on both.
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      07-11-2016, 11:39 PM   #3
RickiBobby
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Quote:
Originally Posted by AtlasM View Post
When did you get the UUC sway bars? I had tried to buy them recently but UUC kept having delays with getting bushings made for them. I ended up keeping my front xi bar and doing E93 M3 in the rear, adjustable end links on both.
Back in Feb.. Have you gotten coils or whats the rest of your suspension like?
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      07-12-2016, 12:21 PM   #4
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I have Koni FSDs, B&G springs, E93 M3 rear sway bar, Ground Control xi street camber plates, Ground Control front & Hotchkis rear adjustable end links, Strongflex front sway bar bushings, Strongflex front tension strut bushings, Whiteline rear subframe bushings. Full parts list here:

http://www.e90post.com/forums/showthread.php?t=1280939
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      07-12-2016, 04:12 PM   #5
pits200
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You have any upgraded fueling? Also, are you manual or automatic. How's the car holding up to the power besides the suspension.
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      07-12-2016, 10:21 PM   #6
RickiBobby
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Quote:
Originally Posted by pits200 View Post
You have any upgraded fueling? Also, are you manual or automatic. How's the car holding up to the power besides the suspension.
Stage 2 Fuel-it pump, new hpfp and running an e60 tune on mhd. Im At with Alpina transflash and recently did the trans service. Holds up real well! I need a new tune but I have a boost leak im chasing right now and its Az in the summer so no need for boost at the moment....lol I need pi or tbi but im considering tbi as I dont want to spend the money or boost much past 600 awhp. Im currently at the top of my fuel trims so I need to do one or the other in the fall when it cools down.
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      07-13-2016, 05:20 PM   #7
RickiBobby
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Got my coils yesterday. Here's the unboxing video.

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