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      08-30-2020, 02:54 PM   #1
Junebug85
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G30 Gloss Black Rear Diffuser - Advice

I'm looking at getting a M Performance style rear diffuser in gloss black.

I have found one and seems decent enough. I was going to buy it from Amazon as the manufacturer (STM) sells it on there.

I've seen it on eBay too but more expensive - but I've just come across a site selling it for £67.58.

My initial reaction was too good to be true...

£168.95:
https://www.amazon.co.uk/gp/product/...KJLZG46M&psc=1

£174.95:
https://www.ebay.co.uk/itm/BMW-G30-G...75.c101224.m-1

£67.58:
https://www.gabhcon.com/index.php?ma...ducts_id=17379

Has anyone heard of this company? Can't find much reviews on them etc.

Thanks in advance.
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      09-01-2020, 03:42 AM   #2
csm7djs
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I would personally stay away from that last company.

No address listed and very little information.

With some of the OEM parts, if they don't fit correctly and you aren't happy, it looks like it might be a pain to return. Amazon and eBay will be much easier.

My Gloss Black rear diffuser might be going up for sale - its only 2 months old but I've just bought a M performance exhaust and I'm not sure it will fit.


https://vi.raptor.ebaydesc.com/ws/eB...=3150265588006
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      09-01-2020, 03:08 PM   #3
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Quote:
Originally Posted by csm7djs View Post
I would personally stay away from that last company.

No address listed and very little information.

With some of the OEM parts, if they don't fit correctly and you aren't happy, it looks like it might be a pain to return. Amazon and eBay will be much easier.

My Gloss Black rear diffuser might be going up for sale - its only 2 months old but I've just bought a M performance exhaust and I'm not sure it will fit.


https://vi.raptor.ebaydesc.com/ws/eB...=3150265588006

Hi is this a genuine BMW part ?
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      09-02-2020, 03:18 AM   #4
csm7djs
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Nope - its OEM.

The fitment is good, but not as good as the original. It took me several attempts to get it so that I was happy with the fit. There is a slight gap at each edge where it connects with the bumper.

When I say slight gap, its about 1-2mm, and you have to get up really close too see it, but I knew it was there.
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      09-02-2020, 03:40 AM   #5
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I've attached a picture of it fitted to my car
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      09-07-2020, 05:42 PM   #6
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I am selling my matt black m performance style rear diffuser for 60 quid. It's in used condition but the price reflects that
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      09-08-2020, 04:51 AM   #7
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Quote:
Originally Posted by devil84 View Post
I am selling my matt black m performance style rear diffuser for 60 quid. It's in used condition but the price reflects that

Interested send me a PM
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      09-08-2020, 05:58 AM   #8
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Quote:
Originally Posted by devil84 View Post
I am selling my matt black m performance style rear diffuser for 60 quid. It's in used condition but the price reflects that
I'm looking at buying the same one, in gloss back from STM. It's through Amazon so there's a bit of reassurance if there are any issues.

Will wait a month or 2 as I've just purchased 50w CREE LED reverse bulbs and lookkng at M style gloss black mirror caps.
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      09-08-2020, 07:46 AM   #9
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Quote:
Originally Posted by Junebug85 View Post
Quote:
Originally Posted by devil84 View Post
I am selling my matt black m performance style rear diffuser for 60 quid. It's in used condition but the price reflects that
I'm looking at buying the same one, in gloss back from STM. It's through Amazon so there's a bit of reassurance if there are any issues.

Will wait a month or 2 as I've just purchased 50w CREE LED reverse bulbs and lookkng at M style gloss black mirror caps.
Do you have a link for the LED bulbs ?

Thanks
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      09-08-2020, 08:22 AM   #10
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Quote:
Originally Posted by Junebug85 View Post
I'm looking at buying the same one, in gloss back from STM. It's through Amazon so there's a bit of reassurance if there are any issues.

Will wait a month or 2 as I've just purchased 50w CREE LED reverse bulbs and lookkng at M style gloss black mirror caps.
My one is actually bought from STM. Let me know if interested.
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      09-08-2020, 11:10 AM   #11
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Quote:
Originally Posted by devil84 View Post
Quote:
Originally Posted by Junebug85 View Post
I'm looking at buying the same one, in gloss back from STM. It's through Amazon so there's a bit of reassurance if there are any issues.

Will wait a month or 2 as I've just purchased 50w CREE LED reverse bulbs and lookkng at M style gloss black mirror caps.
My one is actually bought from STM. Let me know if interested.
What's the condition of it? Any marks/scratches?

Supposed I could always get your one and then get it sprayed in gloss black.
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      09-08-2020, 11:21 AM   #12
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Quote:
Originally Posted by The Zimmer View Post
Quote:
Originally Posted by Junebug85 View Post
Quote:
Originally Posted by devil84 View Post
I am selling my matt black m performance style rear diffuser for 60 quid. It's in used condition but the price reflects that
I'm looking at buying the same one, in gloss back from STM. It's through Amazon so there's a bit of reassurance if there are any issues.

Will wait a month or 2 as I've just purchased 50w CREE LED reverse bulbs and lookkng at M style gloss black mirror caps.
Do you have a link for the LED bulbs ?

Thanks
https://www.horizonleds.co.uk/bay9s-...5-cree-led-50w

Price shown is for each.
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      09-08-2020, 04:44 PM   #13
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Quote:
Originally Posted by Junebug85 View Post
What's the condition of it? Any marks/scratches?

Supposed I could always get your one and then get it sprayed in gloss black.
It has marks and scratches so I would not say mint. I can take some closer up pics of one area which has the bulk of the marks /scratches.

Need it gone And price reflects condition
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      09-09-2020, 04:23 AM   #14
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Quote:
Originally Posted by devil84 View Post
Quote:
Originally Posted by Junebug85 View Post
What's the condition of it? Any marks/scratches?

Supposed I could always get your one and then get it sprayed in gloss black.
It has marks and scratches so I would not say mint. I can take some closer up pics of one area which has the bulk of the marks /scratches.

Need it gone And price reflects condition
Ah okay. Will give it a miss for now bud.

Thank you though.
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      09-15-2020, 03:24 AM   #15
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Gloss Black Rear Diffuser Install (G30 540i M-Sport) https://g30.bimmerpost.com/forums/sh....php?t=1757747

I just installed this gloss black diffuser yesterday, it was $180 USD from eBay. I'd reckon getting an ABS plastic one like this from eBay is your best bet. Let me know if you have any questions
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