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Old 04-11-2013, 09:40 AM   #1
parm
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Power Flex Upgrade ?

After dealing with changing My bushings every 2 years I am going to Power Flex the front end of the E39 M5. I read a lot of pros. and cons. of doing this, but the pros out weigh the cons for me ! Any thoughts from members that use or used Power Flex bushings? (polyurethane bushings)

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Old 04-11-2013, 06:59 PM   #2
marek
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I have them on the front of my E39 M5 and love them. No issues and I use my car year round including winter. No squeaking or other issues and they have been on the car for over a year.
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Old 04-11-2013, 09:07 PM   #3
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Now were cooking with peanut oil ! Can't wait to get them in, Thanks Marek, I daily drive mine two 7 winters so far, I don't enjoy driving anything else these days.
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Old 04-11-2013, 10:58 PM   #4
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I also like to know! I was planning to use them on the E38 soon.
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Old 04-12-2013, 02:44 PM   #5
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It really tightenes up the front end. The ride is a tad bit harsher but barely noticeable. What you do notice is how tight it feels.
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Old 04-12-2013, 11:37 PM   #6
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I've been using them for a few years no issues, unless you're picky you'll propply notice the harshness for only a few days then... .

I've been told there are two firmness, I have the purple ones I think they are the softer of the two but I haven't confirmed that. Make sure you use washers on both sides.

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Old 04-13-2013, 12:12 AM   #7
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Now i hear things that make me think twice...From what i was told the quality is NOT what it used to be, and lots of people had problems with them in the last year...
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Old 04-13-2013, 12:57 AM   #8
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Quote:
Originally Posted by Eurostyle View Post
Now i hear things that make me think twice...From what i was told the quality is NOT what it used to be, and lots of people had problems with them in the last year...
I think they are great, no shimmy and you don't have to screw with the thrust arms every year or every few years. I'm used to driving sports cars so no problem for me but if you want the luxuro cruiser then... well you get my point.

Edit: IMO I think its what BMW really had in mind but had to put the $hitty bushings in to soften things.
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Last edited by MLue1; 04-13-2013 at 01:00 AM. Reason: adding comment
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Old 04-13-2013, 01:09 AM   #9
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I think they are great, no shimmy and you don't have to screw with the thrust arms every year or every few years. I'm used to driving sports cars so no problem for me but if you want the luxuro cruiser then... well you get my point.

Edit: IMO I think its what BMW really had in mind but had to put the $hitty bushings in to soften things.
I know what you mean, i have no problem with the comfort, but when people have to get them taken off because they are falling apart, i get scared!

I know they are one of the most reputable company for bushings, but if quality have gone down, that changes everything!
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Old 04-13-2013, 08:41 PM   #10
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Never heard of them falling apart but I'd suspect that the result maybe the same as when the OEM one wear out.... shimmy.

For $75 for both sides they maybe worth a try.
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Old 04-14-2013, 10:54 AM   #11
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I have a feeling it will transfer the flex somewhere else that will wear out sooner !!
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Old 04-14-2013, 11:45 AM   #12
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I have a feeling it will transfer the flex somewhere else that will wear out sooner !!
I've had them in for three~ four years I wouldn't say that they are rock hard only in the winter when its cold (minus 20 or colder) do I notice them.

Getting the old ones out was the hardest part, after that you just push them in by hand. I was worried that they would be noisy and require lubrication from time to time and had drilled some holes to facilitate lubing them without removal (plugged with RTV) but they have not creeked or made noise like other poly bushings that that I've had.

So my experience has been good, have no complaints with Powerflex, I'd buy them again but "to each his own".
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Old 04-14-2013, 02:16 PM   #13
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I would definitely do it again in my car. Like Mark above said, you only notice it in real cold. Otherwise you have a nice tight suspension.
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Old 04-16-2013, 07:32 PM   #14
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2 week delay on shipping so no update for now. odd's and end's came in but no power flex.
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Old 04-18-2013, 11:06 PM   #15
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Power flexed the tranny mounts, and all sway bar bushings, with the e60 short shifter its amazing, really tight and crisp shifts, The Heavy e39 chassis needs this. Just waiting on thrust arm bushings.
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