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      06-14-2019, 05:06 AM   #1
blueislander
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F32 440i BMW Diffuser Pics?

Hi all, does anybody have any real life experience of the 440i M Performance OEM diffuser?

Available pretty cheap from BMW these days and I figure it's the last thing to do on my black 440i to match the grilles, spoiler and splitter.

has anyone fitted it themselves or taken it to BMW? Idea of costs for labour etc?

Thanks!
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      06-14-2019, 05:15 AM   #2
Nart
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I went with a decent aftermarket one. It's probably the easiest part to fit out of the entire exterior M Performance kit. You'd be crazy paying the dealers to fit it.
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      06-14-2019, 10:16 AM   #3
Abzynthe
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Quote:
Originally Posted by Nart View Post
I went with a decent aftermarket one. It's probably the easiest part to fit out of the entire exterior M Performance kit. You'd be crazy paying the dealers to fit it.
Agreed. It's so easy to do. Probably 20 minutes if your being careful, 10 if you just pull after taking the screws out lol
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      06-14-2019, 02:05 PM   #4
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I've got a OEM one for my F36. It's been ok and would get another when I replace the car.

Can't find the photos at the moment just search for my postings.
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      06-14-2019, 03:22 PM   #5
Donny_1962
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Hi, Definitely go OEM if you can justify the cost, so much easier to get a good fit. The Ebay ones that i have had on other cars were "just about" acceptable. Very easy and quick to do it yourself. OEM one below.
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      06-14-2019, 04:30 PM   #6
Sheepy
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As everyone has already said, easiest mod you will ever do yourself!
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      06-15-2019, 01:34 AM   #7
blueislander
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Lol thanks chaps. Will do it myself then.

Can get an OEM one new for £250 delivered which seems good value!
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      06-15-2019, 03:24 AM   #8
Mr Burt
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I always think they look better in gloss black.
OEM always looks like it will fade over time and a bit, well dull.
I will give EBAY a trawl.
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      06-15-2019, 07:00 PM   #9
dk1894
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Quote:
Originally Posted by blueislander View Post
Lol thanks chaps. Will do it myself then.

Can get an OEM one new for £250 delivered which seems good value!
Quote:
Originally Posted by Mr Burt View Post
I always think they look better in gloss black.
OEM always looks like it will fade over time and a bit, well dull.
I will give EBAY a trawl.
I've had the DM Autoteile one and the OEM...I'll let you guess which is which and if you can't that's a good enough case to save a few quid on the non-OEM as it's all just plastic in the end.

Personally, I found even the fit of the DM Auto one to be perfectly fine with no issues. I couldn't tell one apart from the other!
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      06-16-2019, 02:00 AM   #10
blueislander
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Thanks all. Got the OEM from ebay for £250 brand new so I'm happy.

Anybody know how to fit it? Any YouTube links?
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      06-16-2019, 04:11 AM   #11
Eimal
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Quote:
Originally Posted by blueislander View Post
Thanks all. Got the OEM from ebay for £250 brand new so I'm happy.

Anybody know how to fit it? Any YouTube links?
Quote:
Originally Posted by blueislander View Post
Thanks all. Got the OEM from ebay for £250 brand new so I'm happy.

Anybody know how to fit it? Any YouTube links?
it's very easy 2 small bolts on either end and 4 screws in the middle, you'll see if you look under and start to remove the old one... top part just clips into place, no need for a video
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      06-16-2019, 05:14 AM   #12
SuperHamz
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It's for an F30, but the principle will be the same
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      06-16-2019, 05:29 AM   #13
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Quote:
Originally Posted by blueislander View Post
Hi all, does anybody have any real life experience of the 440i M Performance OEM diffuser?

Available pretty cheap from BMW these days and I figure it's the last thing to do on my black 440i to match the grilles, spoiler and splitter.

has anyone fitted it themselves or taken it to BMW? Idea of costs for labour etc?

Thanks!
Check out Kies Motorsports YouTube videos for video of installation of one on a 335i, same concept. Very simple.
Suggestions: 1) if you have chrome exhaust tips, having original diffuser off is perfect time to clean and use a metal polish for a layer of protection before installing new diffuser
2) also a good time for a layer of good plastic protectant on new diffuser.
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