RW Carbon 2015-2020 BMW F8X M3 M4 RWS Carbon Fiber Diffuser
The RWS or RW Signatures carbon fiber rear diffuser features a 3 fin design for a modded look without being overly aggressive and in your face. […]
The RWS or RW Signatures carbon fiber rear diffuser features a 3 fin design for a modded look without being overly aggressive and in your face. The RWS F8X diffuser is perfect for the customer who wants the unique aggressive carbon fiber diffuser but doesn’t want to worry about scraping or getting caught on parking blocks which can be an issue with the larger diffuser options we offer. These RW Signature M3/M4 diffuser are designed in-house at RW so you can guarantee they are unique to anything else on the market. The piece is produced with genuine 2×2 Carbon Fiber in conjunction with industry leading resins and clearcoats which ensures this diffuser looks amazing on day 1 and years down the road. We complete each item with a UV resistant clearcoat – Non yellowing, fading or discoloration! Installation takes the experienced tech about 30-60 minutes from start to finish. Stand out from all the other M3 and M4’s on the road today with a diffuser that’s as unique as your vehicle, the RW Signature carbon fiber diffuser.
Installatio
This RWS carbon fiber diffuser for the F8X M3 and M4 installs in place of your OEM diffuser and will re-use existing mounting locations. Self tapping screws will be needed for the end pieces. Professional installation is recommended. If you need help in the Southern California area we got you covered!
Fitment
- 2015-2020 BMW F80 M3 Seda
- 2015-2020 BMW F82 M4 Coupe
- 2015-2020 BMW F83 M4 Convertible
Features
- Designed in house at RW Carbo
- Aggressive design, yet great ground clearance
- 2×2 carbon fiber constructio
- Completed with UV resistant clearcoat
- Inspected before shipping from our California warehouse
- Ships from our Anaheim CA locatio
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FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.
Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
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