KARBONIUS COMPOSITES COUPE CARBON DOOR SET FOR E92 BMW M3
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Karbonius Coupe Carbon Door Set for E92 BMW M3
Karbonius develops full carbon fiber doors as an extreme weight reduction upgrade, cutting approximately 13 kilograms per door compared to OEM construction. Because door structure is critical to occupant safety, Karbonius engineers each door to minimize weight without compromising protection. The outer skin and internal reinforcement are produced exclusively from prepreg carbon fiber and aramid fiber (Kevlar) pre-preg, including integrated side impact bars. These bars are installed inside the door and secured using structural adhesive and OEM fasteners. Each door is designed to accept factory mounting points and hardware, including OEM latches, window regulators, seals, and interior panels (not included), so functionality is retained. To guarantee precise fitment and compatibility with factory mechanisms, the interior panel is cut by automated robotic equipment. The door is supplied with an exterior primed finish, ready for paint, with other finish options available on request.
Features
- 13 kg weight reduction per door vs OEM
- Pre-preg carbon fiber and aramid (Kevlar) construction
- Integrated side impact bars for occupant safety
- Uses OEM hinges, latches, regulators, seals, and interior panels
- Robot-cut inner structure for precise fit and function
- Delivered primed and ready for paint, with other finishes available
- 2-year warranty
Applications
- BMW M3: E92 (2007-2013)
Notes
- Instructions are not included. Professional installation is highly recommended.
About Karbonius Composites
Karbonius Composites prioritizes uncompromising quality. Every component is produced in Spain from 100% prepreg carbon fiber and autoclave-cured, using meticulous hand layup by highly qualified technicians under rigorous quality controls. Confident in its manufacturing standards, Karbonius provides a 2-year warranty against manufacturing defects. With extensive composites experience and a global base of satisfied customers, the brand is committed to delivering exceptional products and customer satisfaction. Each piece is individually numbered to verify origin and authenticity.
| pa_select-exterior-finish | primed-ready-to-paint, 2×2-gloss-carbon |
|---|---|
| pa_select-interior-finish | 4×4-gloss-carbon, 2×2-gloss-carbon, 4×4-matte-carbon, 2×2-matte-carbon |
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We want you to feel confident before making your purchase. Here are a few important details to help you better understand this product and how it fits into your space.
- Please review the product dimensions carefully to ensure the right fit for your space
- Color may vary slightly due to lighting and screen settings
- Materials and finishes are selected for both durability and visual appeal
- Some items may require simple assembly upon delivery
- Perfect for both everyday use and long-term comfort
If you have any questions about this product, feel free to reach out to our support team. We're here to help you make the right choice.
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.














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