eBay product ratings thread

[Dav3]

Originally Posted by Whatcoloristhat

Did you install the door level handles and seat shells? How’s the fitment and comparison to oem 2x2 weave?

Edit:just noticed you wrote about seat shells, so it matches oem cf weave? If so might pull the plug but more interested in the full seat shell versions if they offer it?

Yeah, I want to say that it does match the oem cf weave, at least to the naked eye! Not sure if they do the full version, havent seen it!

Door level handles are good quality for the price and actually are almost a perfect fit. Unfortunately its neither real CF and the pattern doesnt match the oem one, so I decided to ditch it.

The single carbon fiber dct surround element is good quality but mine came with a dent in it. Fitment is okay but even with the cf pattern resembling oem, it looks a bit off. Decided to ditch this too!

I can supply more pics if you want

[kindafrosty]

Very pleased with Bayson R front splitters I purchased last fall.

The fitment is 8.5/10 even though I didn't do the best job with installation over the PPF. My advice is to wait to remove the double-sided tape until the splitter is in place to avoid gaps, or use black vinyl behind it. Do not use the included tape, buy VHB. No screws needed and the splitters have not budged an inch at high speeds or from pressure washing.

Cosmetically, I'd give these splitters a 9/10; my low expectations were blown away for the price! The CF weave and clearcoat had almost no imperfections besides one minor blemish, which isn't visible. I've put 5k miles on the car since then, and the clearcoat has held up beautifully to debris and road grime.

[michael1284]

Picked up a few things from vendor's I've used before and from this thread:

Rear CF Spoiler - CarbonKing

Front Lip - Magicdrift

Overall - rear CF spoiler - arrived fast and looks great. Fitment was perfect and clearcoat is good. No issues w/ weave.

Front lip is 8/10. I had to trim a lot of the left/right underside panels to get it to fit and it's just a cheap poly lip. I bought this b/c I know I will just tear it up and my wife sometimes drives my car. This is cheap enough where it looks good and I won't have to worry about it. Fitment is 8/10. Most of the holes lined up but I did have drill a few 2-3mm to the left/right. My passenger side right under the grill has a small gap. I was able to use extra screws to kinda "mold" it to not really be noticable.

Also picked up some RWP side splitters from someone local. I'm really scared my wife or kid will break one of these lol. Just a matter of time.

[EricP3]

If anyone was thinking about the cf diffuser from ali express vendor JC Sportline I ordered mine on March 11th and I still don't have it. I will report back on fitment if/when I finally get it. Fingers crossed it is good but heads up to anyone thinking of ordering from ali express it might take a month+.

[blkcow]

Interesting - do you have any pics?

Originally Posted by michael1284

Picked up a few things from vendor's I've used before and from this thread:

Rear CF Spoiler - CarbonKing

Front Lip - Magicdrift

Overall - rear CF spoiler - arrived fast and looks great. Fitment was perfect and clearcoat is good. No issues w/ weave.

Front lip is 8/10. I had to trim a lot of the left/right underside panels to get it to fit and it's just a cheap poly lip. I bought this b/c I know I will just tear it up and my wife sometimes drives my car. This is cheap enough where it looks good and I won't have to worry about it. Fitment is 8/10. Most of the holes lined up but I did have drill a few 2-3mm to the left/right. My passenger side right under the grill has a small gap. I was able to use extra screws to kinda "mold" it to not really be noticable.

Also picked up some RWP side splitters from someone local. I'm really scared my wife or kid will break one of these lol. Just a matter of time.

[getsituated91]

Just got a M-Spec CS style lip off ebay, but it didnt come with any pre-drilled holes or guides to drill holes. Anybody have a DIY guide?

[brocurls]

Originally Posted by EricP3

If anyone was thinking about the cf diffuser from ali express vendor JC Sportline I ordered mine on March 11th and I still don't have it. I will report back on fitment if/when I finally get it. Fingers crossed it is good but heads up to anyone thinking of ordering from ali express it might take a month+.

I bought the JC Sportline CF Diffuser from them a couple months ago. I've ordered one from a no-name off-brand from Ebay. It was a cheap piece of flimsy shit with horrible fit (wasted a couple bucks on return shipping).

The JC Sportsline diffuser felt legit. It had a good weight and the weave wasn't distorted. No jagged edges and fitment was 10/10??. I ?'d it because looking at it straight on, it looks very perfect with no gaps or contortion, but if I'm standing right up to the trunk and look down, it looks like the ends budge out just a bit with the middle flush to the bumper. It's not super noticeable...hell I chalk it up to the design of the diffuser as it's visibly even on both ends. Or maybe this is how OEM CF diffuser is?

I've bought numerous JC Sportsline stuff...front CF upper splitters, CF mirrors, rear CF splitters, and the CF CS spoiler. All of them I'm highly satisified from a dollars to expectations POV

[jd__m4]

Originally Posted by brocurls

I bought the JC Sportline CF Diffuser from them a couple months ago. I've ordered one from a no-name off-brand from Ebay. It was a cheap piece of flimsy shit with horrible fit (wasted a couple bucks on return shipping).

The JC Sportsline diffuser felt legit. It had a good weight and the weave wasn't distorted. No jagged edges and fitment was 10/10??. I ?'d it because looking at it straight on, it looks very perfect with no gaps or contortion, but if I'm standing right up to the trunk and look down, it looks like the ends budge out just a bit with the middle flush to the bumper. It's not super noticeable...hell I chalk it up to the design of the diffuser as it's visibly even on both ends. Or maybe this is how OEM CF diffuser is?

I've bought numerous JC Sportsline stuff...front CF upper splitters, CF mirrors, rear CF splitters, and the CF CS spoiler. All of them I'm highly satisified from a dollars to expectations POV

I have multiple CF parts from JC Sportline, including the 3pc diffuser. IMO, out of all the Chinese CF stuff, they're the best bet. Everything from them has good weave, good fit/finish, and seems to hold up over time.

[MINERALGREY_F80M3]

Grabbed these M buttons / start button, U.S shipper so I got them in 3 days.
Still illuminate like oem, quick and simple install plug/play

https://www.ebay.com/itm/15-20-BMW-F...UAAOSwbvdgfanY

[Kilabyte]

Originally Posted by MINERALWHITE_F80M3

Grabbed these M buttons / start button, U.S shipper so I got them in 3 days.
Still illuminate like oem, quick and simple install plug/play

https://www.ebay.com/itm/15-20-BMW-F...UAAOSwbvdgfanY

You could have saved some money and bought these:
https://www.amazon.com/gp/product/B0...f_=as_li_ss_tl

I recently replaced my yellow IND ones with these in red and comparing them side by side you couldn't tell which product cost 3 times more.

Edit: if you click on the blue ones on Amazon it's the same exact pic as the Ebay ones you posted.

[EricP3]

Finally got my Ali Express JC Sportline CF Diffuser after about 45 days. Quality looks good I will post some fitment pics when I get it on this weekend. Anyone looking to order from Ali Express should be aware that its going to take a solid 30+ days.

[E92Roni]

Anyone tried this? Looks like plastic with a "carbon fiber coat" like it says in their description. I'd assume the pictures aren't actually theirs. Wonder how the fitment is.


https://nintestore.com/products/nint...CABEgKOovD_BwE

[Walmart Parking Lot]

Originally Posted by RoniE92

Anyone tried this? Looks like plastic with a "carbon fiber coat" like it says in their description. I'd assume the pictures aren't actually theirs. Wonder how the fitment is.


https://nintestore.com/products/nint...CABEgKOovD_BwE

Never heard of that store. Get this one if you want a V style: https://www.aliexpress.com/item/3281...52e64c4dNCnffh

Many people on this forum have vouched for this including me.

[Kuucheki]

I just received this one. My mechanic was going to install it but it doesn't fit for shit. The seller is telling me the rear bumper has to come off to get it installed. Even with it not fully seated it touches the muffler. Anyone had to remove bumper to install or bs?

Check out this product on Alibaba App 3 Pcs V Type For BMW F80 F82 F83 M3 M4 2015+ Auto Rear Bumper Carbon Diffuser https://m.alibaba.com/product/607998...00000%22%7D%7D

[henrylee]

Wow that looks like crap

[Walmart Parking Lot]

Originally Posted by Kuucheki

I just received this one. My mechanic was going to install it but it doesn't fit for shit. The seller is telling me the rear bumper has to come off to get it installed. Even with it not fully seated it touches the muffler. Anyone had to remove bumper to install or bs?

Check out this product on Alibaba App 3 Pcs V Type For BMW F80 F82 F83 M3 M4 2015+ Auto Rear Bumper Carbon Diffuser https://m.alibaba.com/product/607998...00000%22%7D%7D

Lmao you shouldn't have to remove the bumper to install it

[Kuucheki]

Originally Posted by Walmart Parking Lot

Lmao you shouldn't have to remove the bumper to install it

Originally Posted by Walmart Parking Lot

Lmao you shouldn't have to remove the bumper to install it

That's what im thinking but the seller keeps saying they have sold thousands of these and that the only way to get it to install is to remove the bumper because the carbon is more rigid etc bla bla bla

[Kuucheki]

Just spoke to my body shop. They'll be installing next week. They said they have seen this before and removing the bumper will most probably work. Thanks

[notnow]

Originally Posted by Kuucheki

Just spoke to my body shop. They'll be installing next week. They said they have seen this before and removing the bumper will most probably work. Thanks

Mine fit like that in the beginning. Don't take this as advice, but I used some sunlight for heat and some force to "bend" the diffuser to be able to slide it into the tabs. And yes, my diffuser touches the mufflers 24/7 so I added pads in between the diffuser and the muffler to prevent rubbing.

I would imagine taking the bumper off would actually make it harder to install as it takes quite a bit of force to bend the diffuser and you'd have the bumper moving all over the place.

[Kuucheki]

Originally Posted by wonton1017

Mine fit like that in the beginning. Don't take this as advice, but I used some sunlight for heat and some force to "bend" the diffuser to be able to slide it into the tabs. And yes, my diffuser touches the mufflers 24/7 so I added pads in between the diffuser and the muffler to prevent rubbing.

I would imagine taking the bumper off would actually make it harder to install as it takes quite a bit of force to bend the diffuser and you'd have the bumper moving all over the place.

Originally Posted by wonton1017

Mine fit like that in the beginning. Don't take this as advice, but I used some sunlight for heat and some force to "bend" the diffuser to be able to slide it into the tabs. And yes, my diffuser touches the mufflers 24/7 so I added pads in between the diffuser and the muffler to prevent rubbing.

I would imagine taking the bumper off would actually make it harder to install as it takes quite a bit of force to bend the diffuser and you'd have the bumper moving all over the place.

Thank you!

[Kuucheki]

Originally Posted by wonton1017

Mine fit like that in the beginning. Don't take this as advice, but I used some sunlight for heat and some force to "bend" the diffuser to be able to slide it into the tabs. And yes, my diffuser touches the mufflers 24/7 so I added pads in between the diffuser and the muffler to prevent rubbing.

I would imagine taking the bumper off would actually make it harder to install as it takes quite a bit of force to bend the diffuser and you'd have the bumper moving all over the place.

What material are the pads made out of that you added between the diffuser and muffler?

[GTABurnout]

Originally Posted by wonton1017

Mine fit like that in the beginning. Don't take this as advice, but I used some sunlight for heat and some force to "bend" the diffuser to be able to slide it into the tabs. And yes, my diffuser touches the mufflers 24/7 so I added pads in between the diffuser and the muffler to prevent rubbing.

I would imagine taking the bumper off would actually make it harder to install as it takes quite a bit of force to bend the diffuser and you'd have the bumper moving all over the place.

Mine also had the same issue. You just have to trust that you can flex it more then you think you can.