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      09-28-2020, 01:37 AM   #1
beef.58
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aftermarket carbon fiber diffuser

i'm looking to switch out my diffuser/bumper trim, stock aint cutting it anymore
anyone know where i can find a good carbon fiber diffuser for the m340?

looking for something along these lines


Last edited by beef.58; 09-29-2020 at 11:26 PM..
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      10-01-2020, 02:22 PM   #2
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Be aware when buying these diffusers from China, the m340 they have in China has a different layout for the exhaust, so it doesn't fit at all.
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      10-03-2020, 09:01 PM   #3
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Quote:
Originally Posted by Mr.G20 M340 View Post
Be aware when buying these diffusers from China, the m340 they have in China has a different layout for the exhaust, so it doesn't fit at all.
word i've been looking out for that, learned the hard way when i bought some blacked out exhaust covers

any recommendations you suggest?
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      10-05-2020, 10:14 AM   #4
truekumar
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I too have been looking for a decent diffuser. I’ve drilled down to two options: the first being the m performance rear diffuser or this completion one from Autid:

https://autoid.co/products/autoid-co...m340i-2019-g20

But I just can’t find any photos of the AUTOID one
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      10-05-2020, 01:14 PM   #5
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Quote:
Originally Posted by truekumar View Post
I too have been looking for a decent diffuser. I’ve drilled down to two options: the first being the m performance rear diffuser or this completion one from Autid:

https://autoid.co/products/autoid-co...m340i-2019-g20

But I just can’t find any photos of the AUTOID one
https://aaconceptsco.com/collections...mance-diffuser
looks like similar to the AUTOID one, they have pic on the car for reference
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      10-05-2020, 02:55 PM   #6
truekumar
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Quote:
Originally Posted by cywing1119 View Post
https://aaconceptsco.com/collections...mance-diffuser
looks like similar to the AUTOID one, they have pic on the car for reference
Thanks for the photo. Does this one go with the black bumper trim?
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      10-05-2020, 03:48 PM   #7
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Quote:
Originally Posted by truekumar View Post
Thanks for the photo. Does this one go with the black bumper trim?
It appears that it replaces the trim, assuming we are talking about the same piece. It's one piece; the BMW M Performance part is two pieces (the trim and the diffuser).
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      10-05-2020, 11:50 PM   #8
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Quote:
Originally Posted by cywing1119 View Post
Quote:
Originally Posted by truekumar View Post
I too have been looking for a decent diffuser. I’ve drilled down to two options: the first being the m performance rear diffuser or this completion one from Autid:

https://autoid.co/products/autoid-co...m340i-2019-g20

But I just can’t find any photos of the AUTOID one
https://aaconceptsco.com/collections...mance-diffuser
looks like similar to the AUTOID one, they have pic on the car for reference
Quote:
Originally Posted by cywing1119 View Post
Quote:
Originally Posted by truekumar View Post
I too have been looking for a decent diffuser. I've drilled down to two options: the first being the m performance rear diffuser or this completion one from Autid:

https://autoid.co/products/autoid-co...m340i-2019-g20

But I just can't find any photos of the AUTOID one
https://aaconceptsco.com/collections...mance-diffuser
looks like similar to the AUTOID one, they have pic on the car for reference
Horrible fitment don't but this.
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      10-05-2020, 11:56 PM   #9
cywing1119
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Quote:
Originally Posted by longlasting View Post
Horrible fitment don't but this.
You got one?
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      10-06-2020, 12:28 PM   #10
truekumar
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Yeah it just doesn’t look right. I think I may stick with the M performance one, even though they state that it is carbon but it has very little carbon on it when matched with the black trim.
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      10-06-2020, 06:13 PM   #11
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Quote:
Originally Posted by cywing1119 View Post
You got one?
I purchased one from Autoid and the fitment was HORRIBLE. The clips wasn’t even in the right places. There are some extra pieces blocking the diffuser to go inside the bumper, I had to cut them and fit them on. Since it cannot have all the clips click onto the right places, it fits super loose. Last but not least, when I tried to put my exhaust tips back, the space for it on the diffuser was way SMALLER! What they advertised on the website is WRONG. Now I have a piece of junk sitting in my garage.
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      10-07-2020, 12:46 AM   #12
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Quote:
Originally Posted by n228823 View Post
I purchased one from Autoid and the fitment was HORRIBLE. The clips wasn’t even in the right places. There are some extra pieces blocking the diffuser to go inside the bumper, I had to cut them and fit them on. Since it cannot have all the clips click onto the right places, it fits super loose. Last but not least, when I tried to put my exhaust tips back, the space for it on the diffuser was way SMALLER! What they advertised on the website is WRONG. Now I have a piece of junk sitting in my garage.
i wonder how much did you pay for that?
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      10-07-2020, 07:55 AM   #13
truekumar
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I've found the top one:

https://fastlanestyling.co.uk/produc...rear-diffuser/

Not sure if it will fit the standard rectangular exhaust trips that come on the M340i though??
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      10-07-2020, 08:07 AM   #14
truekumar
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I think it is this latvian company whom produce it:

https://protuning.lv/en/70693-perfor...3-series-m340i

Last edited by truekumar; 10-07-2020 at 08:24 AM..
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      10-07-2020, 08:37 AM   #15
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I just spoke to the latvian company and they do not manufacture it. They stated that it should fit the standard M340i bumper but they cannot guarantee that the standard exhaust trims will fit.
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      10-07-2020, 11:05 AM   #16
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Quote:
Originally Posted by truekumar View Post
I just spoke to the latvian company and they do not manufacture it. They stated that it should fit the standard M340i bumper but they cannot guarantee that the standard exhaust trims will fit.
seems like it's the same china manufacturer then
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      10-10-2020, 04:29 AM   #17
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Have you seen this thread from earlier in the year? I installed the Ikon Motorsports one from amazon. Fit and finish are great. Gloss black though not CF.

Aftermarket rear diffusers
https://g20.bimmerpost.com/forums/sh....php?t=1712897
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      10-15-2020, 10:52 PM   #18
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Lip kit for sport line

Anyone know if I can fit a msport lip kit on a G20) sportline?? Any way possible? Has anyone done it?
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      10-17-2020, 02:11 AM   #19
truekumar
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What do you all think of this diffuser? I’m trying to stick with CF as the rest of my parts will also be CF:

https://m.aliexpress.com/item/400103..._backgroup_101
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      10-17-2020, 05:35 PM   #20
truekumar
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Anyone fitted this diffuser on their car yet?

https://carboncarz.com/collections/g20-3-series/products/carbon-carz-bmw-g20-3-series-rear-diffuser-carbon-fiber
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      10-18-2020, 09:07 AM   #21
Mr.G20 M340
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Quote:
Originally Posted by truekumar View Post
What do you all think of this diffuser? I’m trying to stick with CF as the rest of my parts will also be CF:

https://m.aliexpress.com/item/400103..._backgroup_101
I find this one Amazon for $410 shipped
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      10-23-2020, 02:35 PM   #22
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Quote:
Originally Posted by Dapper.g20 View Post
Anyone know if I can fit a msport lip kit on a G20) sportline?? Any way possible? Has anyone done it?
I'm fairly certain that's a non starter.
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