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AliExpress PSM style diffuser

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Old 06-01-2018, 11:58 PM
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C63 s Edition 1 Sedan
AliExpress PSM style diffuser

I've been skeptical to order stuff from AliExpress, but i ordered a few things and the quality has been perfect. Sooo I thought to try out this diffuser https://www.aliexpress.com/item/W205...27424c4dsUQuxj It is pretty cheap so still waiting for it to arrive to review it but I'm hoping for something decent.
Old 06-02-2018, 09:59 PM
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aliexpress is simply a chicom ebay---do they audit their posters--who knows!
Old 06-02-2018, 11:23 PM
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2015 W205 C63S, 2015 328i xdrive, 2008 Mercedes R-Class 350, 2009 Hyundai Equus
I have also been looking at these. Please let me know what they fit and look!
Old 06-03-2018, 01:27 AM
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W205 c63s AMG
I bet you found RW Carbons source
Old 06-04-2018, 11:55 AM
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Originally Posted by Mr. Pink
I bet you found RW Carbons source
Lol and Mode Carbons.
Old 06-04-2018, 11:59 AM
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I'm honestly not sure about that. I won't say anymore about rw just yet. But many of their stuff they sell can be found on ebay. Mode carbon however, cannot find their diffuser, trunk lip, or grille trim replacement. 🤷*♂️
Old 06-04-2018, 01:13 PM
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Originally Posted by Mr. Pink
I'm honestly not sure about that. I won't say anymore about rw just yet. But many of their stuff they sell can be found on ebay. Mode carbon however, cannot find their diffuser, trunk lip, or grille trim replacement. ��*♂️

Ali Express is selling an exact same version of the Mode Carbon diffuser. Personally I think Mode's stuff is hilariously overpriced. Same goes for many other manufacturers (re-sellers) of CF stuff on these forums.
Old 06-04-2018, 02:05 PM
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Originally Posted by raudiace4
Ali Express is selling an exact same version of the Mode Carbon diffuser. Personally I think Mode's stuff is hilariously overpriced. Same goes for many other manufacturers (re-sellers) of CF stuff on these forums.
Got a link? 🌚😈
Old 06-04-2018, 02:22 PM
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C63 s Edition 1 Sedan
https://www.aliexpress.com/item/Car-Accessories-Carbon-Fiber-Rear-Diffuser-Fit-For-2015-2018-MB-W205-Sedan-C63-C63S-Mode/32881851873.html?spm=2114.search0104.3.138.5d7e2c2 7H2GNcR&ws_ab_test=searchweb0_0,searchweb201602_2_ 10152_10151_10065_10344_10068_10130_5722815_10324_ 10342_10547_10325_10343_10546_10340_5722915_10548_ 10341_10545_5722615_10696_10084_10083_10618_10307_ 5722715_10059_100031_10103_10624_10623_10622_57225 15_10621_10620,searchweb201603_55,ppcSwitch_2&algo _expid=dfa80197-1afa-4d77-b98c-9e6cadbbd529-22&algo_pvid=dfa80197-1afa-4d77-b98c-9e6cadbbd529&priceBeautifyAB=0

Mode carbons diffuser
Old 06-04-2018, 02:25 PM
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The resellers are really just another quality control that charges many times more than the normal cost. I think Mode Carbon makes some of their products in-house, but for RW I cant say the same.
Old 06-05-2018, 03:35 PM
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Interested to see how it fits also.....I got the bootleg Renntech Spoiler and doesn't have the best fit; to much of a gap in the middle (But not sure if the original is the same way either)
Old 06-05-2018, 03:47 PM
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I'll order the mode carbon aliexpress diffuser in a few weeks and let yall know
Old 06-05-2018, 03:48 PM
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Any links on their grille replacement and lower trim? 😈
Old 06-05-2018, 04:25 PM
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Originally Posted by Mr. Pink
I'll order the mode carbon aliexpress diffuser in a few weeks and let yall know

Yeah I really like that style, but not sure on fitment. I've had RWcarbon stuff on my E63 and fitment was far from factory...
Old 06-05-2018, 04:25 PM
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Originally Posted by obsidianamg
Interested to see how it fits also.....I got the bootleg Renntech Spoiler and doesn't have the best fit; to much of a gap in the middle (But not sure if the original is the same way either)
I ordered one from RW and first one didn't fit, one side wouldn't stay down and had massive gap, they sent me another and same story.... Then said they'd just refund me as I had too high expectations on aftermarket parts lol what... Like I just wanted something that fit without looking like it'd fall off the car riding down the interstate... Is that too much expectations for my 80k car? Lmaooo
Old 06-11-2018, 10:14 AM
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Originally Posted by Mr. Pink
Any links on their grille replacement and lower trim? 😈
Grille https://www.aliexpress.com/item/2014...ceBeautifyAB=0
Old 06-13-2018, 04:16 PM
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any update on how these aliexpress diffusers fit?
Old 06-13-2018, 04:26 PM
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Originally Posted by Mr. Pink


I ordered one from RW and first one didn't fit, one side wouldn't stay down and had massive gap, they sent me another and same story.... Then said they'd just refund me as I had too high expectations on aftermarket parts lol what... Like I just wanted something that fit without looking like it'd fall off the car riding down the interstate... Is that too much expectations for my 80k car? Lmaooo
I think that's a perfect reason to order something like this from local seller. I too wanted to try some stuff from aliexpress, but I worry that all the BS you have to deal with since the shipping time is so long and seller is so far. If the fit was "questionable" from aliexpress, you might be stuck. With that said, I am not beyond impressed with RW Carbon's product either. In other words, local seller doesn't necessarily have better product, but at least you have someone that you can count on to deal with problems.
Old 06-13-2018, 11:43 PM
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Originally Posted by JaeJin Sohn
any update on how these aliexpress diffusers fit?


Still waiting on it to arrive. I didn't order it until a couple days after i posted this.
Old 06-13-2018, 11:44 PM
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Originally Posted by TLDream
I think that's a perfect reason to order something like this from local seller. I too wanted to try some stuff from aliexpress, but I worry that all the BS you have to deal with since the shipping time is so long and seller is so far. If the fit was "questionable" from aliexpress, you might be stuck. With that said, I am not beyond impressed with RW Carbon's product either. In other words, local seller doesn't necessarily have better product, but at least you have someone that you can count on to deal with problems.


You are right about that. If the product doesn't fit its gonna be alot of work to get a refund or another unit.
Old 06-18-2018, 05:53 PM
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Diffuser came in

The diffuser isn't that bad. The weave is distorted in many places but what can you expect from a cheap diffuser. There are also lots of hazy spots near the fins of the diffuser. What shocked me the most is that there was a hand-marked C63AMG stamp. My car is in service at the moment but will be installing it Thursday this week. will update on fitment as it is the most important part.













The following 3 users liked this post by milan25:
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Old 06-18-2018, 05:57 PM
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If anyone that has the actual PSM diffuser or the RW carbon diffuser please let us know how the quality of your diffuser. How does it compare to this $600 diffuser from China?
Old 06-18-2018, 06:53 PM
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I learned my lesson from ebay bought a $70 dollar 2 piece front diffuser for my prius, it had a large distortion (an obvious line where the carbon folded) but it is not visible once installed, if it was visible, it would've been unacceptable or a score of 70 out of 100. The RW carbon front splitter, i have has very very minimal distortion, i would rate it a 90~95 out of 100. Its hard to tell from pictures, but what would you rate yours?
Old 06-18-2018, 07:24 PM
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I would say right about 70. Most of the imperfections will be in the shadows. so not very noticeable and the part that is under the exhaust tips is decent. but I'm not someone who would buy a diffuser for $1,500. it's not worth that much money IMO. would rather spend that kinda money on important things like getting turbos. but for $600 this is a good deal.
Old 06-19-2018, 12:50 PM
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Originally Posted by milan25
I would say right about 70. Most of the imperfections will be in the shadows. so not very noticeable and the part that is under the exhaust tips is decent. but I'm not someone who would buy a diffuser for $1,500. it's not worth that much money IMO. would rather spend that kinda money on important things like getting turbos. but for $600 this is a good deal.
Exactly this.

From your pics it looks good enough, especially for a diffuser that's going to take a lot of hits from under the car debris/rocks etc. Let us know how the fitment is, I'm debating trying that MC version.


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