RW Carbon 2015-2020 BMW F8X M3 M4 RWS Forged Carbon Diffuser
You guys asked for it, so we had to make it! We’ve added another RWS diffuser to the lineup – This one stands apart from the […]
You guys asked for it, so we had to make it! We’ve added another RWS diffuser to the lineup – This one stands apart from the other RWS diffuser in that it has 3 fins in the center section for an unrivaled sleek appearance. To take this new item one step further this RWS rear diffuser features a forged carbon finish! The RWS Forged carbon M3/M4 diffuser features 1 piece construction – no cheap 3 piece construction here that leaves you with gaps between the pieces. We produce the forged diffuser in the same factory with the same mold, just changing some of the raw materials which gives us a vastly more bespoke finish when compared to the standard Carbon Fiber. Superb fitment and quality come standard when you opt for the RWS forged carbon diffuser. After manufacturing we finish each item with a UV resistant clearcoat just like the standard Carbon Fiber counterpart. Whether you just got your car and it’s time to upgrade the oem painted diffuser, or if you’re just getting bored of your current Carbon Fiber diffuser then the RWS forged M3/M4 diffuser is an excellent option.
- NOTE: Normal lead times for forged carbon products is 8 weeks. If you would like to see if we have any in stock please contact us directly.
Installation
The forged carbon M3 and M4 diffuser installs via tabs and OEM mounting locations. Simply pull your current diffuser off and slide this one in and secure with the screws.
Fitment
- 2015-2020 BMW F80 M3 Sedan including CS
- 2015-2020 BMW F82/F83 M4 Coupe/Convertible including GTS/CS
Features
- Bespoke forged carbon appearance
- Installs via OEM mounting locations
- Maintains ground clearance, no scraping or snagging on parking blocks
- UV resistant clearcoat
- Installs using OE mounting locations and few screws
- Quality checked and shipped from Southern California
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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.
Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.
If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.
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