Yeedercar Rear Diffuser Lip in Carbon Fiber for BMW 8 Series G16 840i M Sport Sedan (2018-2021)
$525.00 Original price was: $555.00.Current price is: $525.00.
Rear bumper diffuser for the BMW 8 Series G16 840i M Sport Sedan (2018-2021) in carbon fiber. 60-90 minutes bolt-on fit, made to order in our own workshop, shipped worldwide with a 12-month warranty.
Fitted to the BMW 8 Series G16 840i M Sport Sedan (2018-2021), it hides the underside of the rear bumper and adds the motorsport look the standard car lacks.
Fits: BMW 8 Series G16 840i M Sport Sedan (2018-2021)
The mounting points line up with the factory lower bumper fixings on the BMW 8 Series G16 840i.
Every panel is inspected for pinholes, resin pooling and weave distortion before the clear coat goes on.
It fixes from underneath with the supplied screws and clips; removing the rear bumper is not necessary on the BMW 8 Series G16 840i.
If your car has a factory tow bar, the diffuser may need trimming around the mounting bracket.
Standard output is gloss clear coat over 3K twill, but matte, satin, forged carbon and tinted clear coats (including red and blue) are all available at order time.
- Gloss, matte, satin or forged carbon finish
- 3K twill, 6K twill, plain weave or carbon-kevlar hybrid
- Coloured tinted clear coat (red, blue, yellow)
- Logo application or badge cut-outs on request
We ship to more than thirty countries, mostly direct to workshops, tuners and distributors who resell under their own label.
Each part is weighed and measured against the master sample, then wrapped in foam and boxed in a double-wall carton with the hardware bagged separately.
For bulk orders we quote from your drawing, scan or sample part; new tooling usually takes 15-25 days, then each batch runs in 20-35 days depending on quantity.
A ceramic or wax coat once a season is all this needs – the clear coat handles UV, but it is not a scratch-proof layer.
Production is 10-15 business days because the part is made after you order it, not pulled off a shelf; after that it ships with tracking and a 12-month defect warranty.
In the box: diffuser, screws, clips and a fitment card.
Related: Yeedercar Handcrafted Carbon Fiber Rear Diffuser Lip for · Yeedercar Carbon Fiber Rear Diffuser for Audi RSQ8 4-Door · Yeedercar Rear Diffuser in Carbon Fiber for Mercedes-Benz (2022)
FAQs
Will this rear bumper diffuser fit my BMW 8 Series G16 840i M Sport Sedan (2018-2021)?
It is built to the original BMW 8 Series G16 840i mounting pattern, so the factory fixings are re-used and nothing has to be cut or drilled. If your car is a facelift or a different trim level of the same model, send us a photo of the rear bumper diffuser area and we will confirm before you order.
Is it carbon fiber?
Vacuum-bagged carbon fiber with a UV clear coat over the weave. The standard layup is 3K twill, and forged carbon, 6K and plain weave can all be produced on request.
Can I fit it myself?
Nothing needs cutting on a standard car. Budget 60-90 minutes, and keep the old hardware to one side while you dry-fit the new part so you can compare it against the original rear bumper diffuser.
What is the production and delivery time?
Production is 10-15 business days, then transit. If you need it faster, message us before ordering and we will tell you honestly whether the date is achievable.
Can I customise the finish, weave or logo?
Weave, finish and edge trim are chosen when you order, and we can add your logo under the clear coat. Tell us what you are matching and we will send samples of the weave if that helps.
Can you produce larger quantities?
We are the manufacturer, so quantity pricing starts from small runs. New tooling from your CAD or sample part takes 15-25 days, then batches run in 20-35 days depending on quantity.
| Material | Carbon Fiber |
| Fitment | BMW 8 Series G16 840i M Sport Sedan (2018-2021) |
| Part Type | Rear Diffuser Lip |
| Finish | UV-stable Clear Coat |
| Installation | Direct Fit to Factory Mounting Points |
| Production Time | 10-15 Business Days (Made to Order) |
| Warranty | 12 Months |
| Stock Status | Made to Order |
| Construction | Carbon fiber (3K twill) |
| Weight (approx.) | 2.5-4.0 kg |
| Hardware | Factory screws + supplied clips |
| Installation Time | 60-90 minutes |
| Custom Options | Weave, finish (gloss / matte / forged), colour tint, logo |
| Bulk / OEM | Sample quantities and 50-1,000+ piece batches |
| Packing | Foam wrap, double-wall carton |
| Shipping | Worldwide tracked (DHL / UPS / FedEx) |
| Brand | Yeedercar |








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