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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > BMW diffuser - which one?



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      04-08-2011, 09:05 AM   #1
doughboy
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BMW diffuser - which one?

Who knows the differences??

I'm just after the black plastic one to fit as it comes, not primed or carbon.

There's this option:

http://www.realoem.com/bmw/showparts...17&hg=51&fg=95



....And there's this option (item 9):

http://www.realoem.com/bmw/showparts...96&hg=51&fg=95

This is one part, called a 'diffuser kit' - it says primed, but is it different to to the one listed in the first option?
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      04-08-2011, 11:13 AM   #2
Anneka @ Sytner
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They're both the same.
The first one is just the back end of the second one, and the kit includes the Performance rear bumper.
If you order item 9 on it's own (which is the same part number as item 2), you can fit this into the Performance rear bumper or the M Aerodynamics rear bumper.

It comes in primer.
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      04-08-2011, 04:33 PM   #3
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Cheers anneka.

I had heard people talking about fitting the black plastic one rather than a primed one that needed painting.

I don't want a painted one.
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      04-08-2011, 05:20 PM   #4
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Garage List
Mike, pic of the diffuser (E92, E91 might vary?) here:

http://www.e90post.com/forums/showpo...59&postcount=6

The black plastic centre section is not designed to be painted, although I guess you could if it was prepped properly.

You can also get the centre section in CF on the tourer and saloon, but I realise that's not what you want.

Some people have mentioned cutting in certain places, but I never had to do any.
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      04-08-2011, 06:36 PM   #5
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Thanks Ian,

I think the e90/91 is different to the coupe, but I remember Yahoo fitting the unpainted plastic one on his tourer.

bit more investigation needed....
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      04-09-2011, 05:15 PM   #6
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what about this one Mike ?
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