RW Carbon 2015-2020 BMW F8X M3 M4 Kholen Style Carbon Fiber Rear Diffuser
This new Kholen Style carbon fiber rear diffuser is the perfect piece to add that race inspired feel to your BMW F80 M3 or F82 F83 […]
This new Kholen Style carbon fiber rear diffuser is the perfect piece to add that race inspired feel to your BMW F80 M3 or F82 F83 M4. This diffuser comes with a real working LED 3rd brake light that will work with your brake lights. A wiring harness and install guide will be included with every diffuser. The Kholen style diffusers are made using our same genuine 2×2 carbon fiber fabric as our other M3/M4 parts. Each piece is clear coated for that brilliant shine and to help protect it from harsh road conditions. Each piece is then quality checked prior to shipping worldwide. So rest assured when purchasing your Kholen style diffuser that you will receive a top quality product. If you have any questions, please contact us today!
Installation
The diffuser itself is fairly simple to install. It replaces the OEM F8x M3/M4 plastic diffuser and re-uses OEM mounting location and requires self tapping screws for the sides. We do recommend professional installation in order to wire the harness for the 3rd brake light. You will need to tap into the taillights wiring harness. For a wiring diagram, please contact us.
Fitment
- 2015-2020 BMW F80 M3 Sedan
- 2015-2020 BMW F82 M4 Coupe
- 2015-2020 BMW F83 M4 Convertible
- 2016-2020 BMW F82 M4 GTS + CS
Features
- Real LED 3rd brake light
- Race inspired design
- Superior RW fitment and quality
- Crafted from genuine carbon fiber
- Bolt on installation
- 2×2 Carbon Fiber construction will match other RW parts
- All hardware included!
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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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