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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 06-19-2017, 09:45 AM   #1
engrmikl
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Join Date: May 2017
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My Ride: 08 550i Sport, 02 M3
Suspension Bushings

Getting ready to do my suspension and looking into Powerflex street/performance kits all the way around. They come in two pieces so since I am going diy this would make it easier.
Anybody done this or know of any draw backs to this plan.
Option two is the ECS refresh kit which is a mixed bag of manufactures
Thanks
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Old 06-20-2017, 12:36 PM   #2
PITT M3 RR
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Poly will add NVH, but also feel more plated. The softer Poly Is more street complaint where as the harder material will be more harsh.

I use Poly at Diff, rtab, SF and soft at the trans. Motor mounts keep oem, FCAB oem or poly. ball joints and CA's got with OE parts. The poly stuff is MUCH easier to replace. The OE metal sleeved parts normally require a press or the install tool.
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UUC SSK / AFE STG1 Intake / AKG Red Motor mounts / AKG Red Tranny mounts / AKG Red Subframe bushings / AKG Red Differential bushings / AKG Red RTABS / TMS Subframe reinforcement / Custom in trunk subframe structural brace / Bilstein PSS10's / Ground control camber plates / Turner RSM
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Old 06-21-2017, 08:04 AM   #3
engrmikl
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Thanks Pitt for the input. I have a feeling I will go with something like you have. Poly on all the ones I need the press for and OEM on the rest. What do you mean soft at the trans?
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Old 06-21-2017, 10:51 AM   #4
PITT M3 RR
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Cool and I mean soft like uuc blue isolated mounts w cups vs their red, bolt through.


The diff, trans and motor mounts are what add the most NVH.

I recommend the UUc isolated blue trans mounts. I run them without issues
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Old 06-26-2017, 09:28 AM   #5
the fly
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In case it helps you, I sell the AKG poly units for e46m3 pre-pressed here:

http://forum.e46fanatics.com/showthr...409&highlight=
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Old 06-26-2017, 10:35 AM   #6
GhostFlame
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I'd use OE everything, except Rogue Enegineering RTABs, and Meyle HD FCABs (pressed in).

The M3 has enough NVH from the factory.
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Old 06-26-2017, 06:23 PM   #7
zander271
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Quote:
Originally Posted by engrmikl View Post
Getting ready to do my suspension and looking into Powerflex street/performance kits all the way around. They come in two pieces so since I am going diy this would make it easier.
Anybody done this or know of any draw backs to this plan.
Option two is the ECS refresh kit which is a mixed bag of manufactures
Thanks
Can you link us to these kits?
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ZHP Mods: JB Lightweight fly wheel (10.5 pounds), Koni FSD ProKit, Supreme Power Drop Hats, Hotchkis front(30.2mm)/rear(25.4mm) sway bars, Sprint Booster, AFE Stage 1 Intake, Morimoto EvoX-R Headlights, Orion V4 Angel Eyes, Satin Black 18x9 ET42 APEX ARC-8 Wheel

330xi Mods:Front Koni Yellow Struts and Rob43 Rear 9 Way adjustable Rear Dampers,Custom Sport Springs,Supreme Power Drop Hats,ZHP 5 speed shift knob
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Old 06-27-2017, 08:10 AM   #8
engrmikl
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Hi Zander
Not at the computer today but ECStuning.com under the suspension tab on the left has them sub listed as refresh kits

Last edited by engrmikl; 06-27-2017 at 08:17 AM.
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Old 06-27-2017, 10:24 AM   #9
engrmikl
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Here is the link for the refresh kits
https://www.ecstuning.com/BMW-E46-M3.../Refresh_Kits/
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Old 06-30-2017, 10:41 AM   #10
engrmikl
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Quote:
Originally Posted by GhostFlame View Post
I'd use OE everything, except Rogue Enegineering RTABs, and Meyle HD FCABs (pressed in).

The M3 has enough NVH from the factory.
I have heard several people say the same thing about all stock but why did you choose to do the rtabs only on the rear in poly?
If you look at the kits I posted from ecs.com is what several people have steered me towards. Except new lower control arms that are reinforced or maybe go adjustable. The adjustable are up there in price and can always change them out later pretty easy.
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Old 07-06-2017, 03:48 PM   #11
GhostFlame
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Rogue Engineering RTABs have a great design, with built in silicone to prevent squeaks (unlike PowerFlex).
Installation was super simple, and I didn't want to dick around with limiters + stock weak RTABs.

4 years on my non-M so far, and I'm sure the new owner of my M3 isn't having any issues with his either.

I wouldn't be surprised if many people screwed up installation of the OEM RTABs by pressing them incorrectly.
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Old 07-07-2017, 03:05 AM   #12
Topazzar
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I am just picking my parts for a huge suspension and bushings refresh. I have decided to go with:

BMW swaybar bushings (4), rear swaybar end links, rear control arm bushings, steering rack boots, engine mounts, gearbox mounts
Lemforder tie rods, front swaybar end links and front control arm bushings
Powerflex subframe, diff and RTA bushings
Redish Motorsport subframe reinforcement kit

*DIY at the front, pro welding and dismantle/reassembly at the rear

**All subject to visual/functional checks and I might split my purchases so I'm not poor
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Last edited by Topazzar; 07-07-2017 at 03:06 AM.
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Old 07-09-2017, 08:47 AM   #13
engrmikl
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I went with the ECS refresh kit which is a mix of manufactures. Rogue RCABs, power flex control arms.
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