





Dry Carbon Fiber F1 Style Diffuser G80 M3 / G82 M4
Take your BMW G80 M3 or G82 M4 to the next level with the Dry Carbon Fiber F1 Style Diffuser. Designed to enhance the aerodynamics and aggressive styling of your vehicle, this high-performance diffuser is built with precision engineering to improve downforce and stability at high speeds. Made from lightweight yet incredibly strong dry carbon fiber, it offers both functional and aesthetic benefits that align with the high-performance nature of the M series.
Features:
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Premium Dry Carbon Fiber Construction: Crafted from 100% dry carbon fiber, this diffuser provides superior rigidity, strength, and lightweight performance. Unlike traditional wet carbon fiber, dry carbon offers even better strength-to-weight ratios, making it perfect for performance-driven vehicles like the BMW G80 M3 and G82 M4.
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F1-Inspired Design: Inspired by Formula 1 aerodynamics, this diffuser is designed to optimize airflow beneath the vehicle. Its aggressive fins and shape help to redirect air, reducing drag and increasing downforce, which results in improved stability and handling, especially at high speeds and during cornering.
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Enhanced Aerodynamics: The diffuser improves airflow dynamics around the rear end of the car, creating better rear stability and minimizing lift. This increased downforce enhances overall driving performance, providing more grip on the road or track.
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Aggressive and Motorsport-Inspired Aesthetic: The dry carbon fiber finish delivers a sleek, high-performance look that complements the bold styling of the G80 M3 and G82 M4. Its aggressive design adds an unmistakable motorsport influence, making your car look track-ready and visually distinctive.
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Perfect Fitment for BMW G80 M3 & G82 M4: This diffuser is specifically designed for the BMW G80 M3 and G82 M4, ensuring an OEM-quality fit with no modifications required. It seamlessly integrates into the rear bumper for a clean, factory-like appearance.
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Lightweight Performance Advantage: Carbon fiber is known for its incredible strength and lightness. By reducing weight in key areas of the car, the diffuser helps improve performance and handling, particularly in terms of cornering agility and braking response.
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UV-Resistant and Scratch-Resistant Coating: The diffuser comes with a protective UV-resistant coating to prevent fading or discoloration from prolonged exposure to sunlight. The scratch-resistant finish ensures that the diffuser maintains its pristine appearance even under regular driving conditions.
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Durable and Long-Lasting: Dry carbon fiber is highly durable and built to withstand the rigors of high-performance driving. It is resistant to heat, moisture, and road debris, ensuring longevity and performance throughout your driving experience.
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Easy Installation: Designed for a direct, bolt-on installation, the diffuser fits perfectly onto the existing mounting points on the G80 M3 or G82 M4’s rear bumper, requiring minimal effort and no modifications.
Upgrade the performance and appearance of your BMW G80 M3 or G82 M4 with the Dry Carbon Fiber F1 Style Diffuser. Enhance your vehicle’s aerodynamics, improve stability, and achieve a more aggressive, race-inspired look. This diffuser is the perfect choice for those who demand the best in both style and performance.
We want you to have our parts as quickly as possible. Products that are in stock will be shipped and delivered domestically in 1–5 business days. It will take seven to twenty-one business days for international shipment. An email confirming that your order is being completed will be sent to you once you place it. For in-house orders, please allow a day for processing and the updating of the tracking number. The product page accurately shows the quantity.
Custom steering wheels typically take 20-25 business days for production, with an additional 5-7 business days for shipping. Production and delivery times may vary depending on the complexity of the order and the shipping destination. For more details, please refer to our Shipping Policy.
Our Return Policy permits returns only for products that are found to be defective. You have 30 days from the date of delivery to inspect the product and report any issues.
Regular Cleaning: Maintain carbon fiber parts by cleaning them regularly with a soft cloth and a mixture of mild soap and water. Avoid abrasive or harsh cleaners that could harm the finish.
Use Microfiber Pads and Cloths: Opt for microfiber pads and cloths when cleaning or applying protective coatings to prevent surface scratches.
Protect from Sun and Chemicals: Limit exposure to direct sunlight and harsh chemicals, as they can damage carbon fiber. When possible, use protective covers or park your vehicle in shaded areas.

Why Thousands of Enthusiasts Trust Us
Carbon Industries delivers premium, precision-engineered parts that elevate Vehicle performance and style—backed by expert support and a true passion for the culture. We don’t just sell parts; we fuel the lifestyle.
- Guaranteed Fitment for Your BMW: No guesswork—our parts are designed and tested to fit your exact model perfectly.
- Premium Materials, Always: We use only high-grade carbon fiber, forged metals, and performance-tested components.
- White-Glove Customer Support: Our team of BMW specialists is here to guide you with expert, concierge-level care.
- Trusted by the Elite Vehicle Community: From daily drivers to show builds, our parts are featured on some of the cleanest builds worldwide.

Let customers speak for us
FAQ
Will these parts fit my specific Vehicle model and year?
Yes — every product page includes a “Will This Fit” section to ensure compatibility. If you’re unsure, just send us your VIN or model/year, and our team will confirm fitment for you within 24 hours. We specialize in BMW and European vehicles, so you’re in good hands.
Are these genuine carbon fiber or carbon fiber overlay parts?
We offer only full carbon fiber options. Each listing clearly specifies the construction material. Rest assured, we only source high-quality parts that are durability-tested and made to OEM or better standards.
How long does shipping take and where do you ship from?
Most orders ship from our Irvine, CA warehouse within 1–3 business days. Domestic delivery typically takes 3–7 business days. International shipping times vary by country. Each product page includes real-time shipping estimates based on your location. Certain made to order products will take up to 3-4 weeksfor delivery, including production time.
Do I need professional installation or can I install it myself?
Many of our mods are designed for direct bolt-on installation and can be installed at home with basic tools. However, for certain parts like aero kits or performance components, we recommend professional installation for best results. Each product page includes install difficulty and notes. We offer professional installation at our Santa Clara, CA location.
What if the product doesn’t fit or I change my mind?
No worries — we offer hassle-free returns within 30 days of delivery. If the part doesn’t fit due to an error on our end, we’ll cover the return shipping. For all other returns, we make it easy to exchange or get a refund. See our full Returns & Warranty Policy for details.
Are your parts tested for quality and durability?
Absolutely. All of our products go through quality control checks and are either TUV-certified, ISO-certified, or tested by our in-house team and verified installers. We don’t sell anything we wouldn’t put on our own cars.
Do you offer warranties on your parts?
Yes. Most of our products come with a 90-day limited warranty against manufacturing defects. Some premium items offer extended warranties — details are listed on the product pages. We’re committed to quality and stand behind what we sell.
Can I finance or pay in installments?
Yes — we offer Shop Pay, Affirm, AfterPay, and Klarna at checkout. You can split your purchase into 4 interest-free payments or choose longer-term plans if needed. It’s quick, easy, and won’t affect your credit score (in most cases)