


Carbon Fiber Undertray diffuser - Nissan GTR R35
Elevate your Nissan GTR R35's performance and aesthetic appeal with our high-quality Carbon Fiber Undertray Diffuser. Designed specifically for the R35 platform, this diffuser not only enhances the vehicle's aerodynamic efficiency but also adds a touch of sophisticated style to your ride.
Key Features:
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Premium Carbon Fiber Construction: Crafted from aerospace-grade carbon fiber, this undertray diffuser is lightweight yet exceptionally strong. Its matte or gloss finish provides a sleek, high-tech appearance that complements the aggressive lines of the GTR.
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Optimized Aerodynamics: Engineered to improve airflow under the vehicle, the diffuser helps to reduce drag and increase downforce, providing enhanced stability at high speeds. This performance upgrade is ideal for both track enthusiasts and everyday drivers looking to maximize their GTR's capabilities.
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Direct Fit Installation: Designed as a direct bolt-on component, this undertray diffuser requires minimal modifications for installation. All necessary hardware is included, making it a hassle-free upgrade that can be completed in under an hour.
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Increased Cooling Efficiency: The diffuser's design promotes improved airflow to critical engine components, aiding in better cooling performance. This feature is especially beneficial during intense driving sessions or when pushing the vehicle to its limits.
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Lightweight Design: Weighing significantly less than traditional plastic or metal options, the carbon fiber undertray diffuser contributes to an overall reduction in the vehicle's weight, enhancing acceleration, handling, and fuel efficiency.
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UV Resistant and Weatherproof: Coated with a durable finish, this diffuser is built to withstand the elements, ensuring that its striking appearance and performance benefits are not compromised over time.
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Customizable Options: Available in various finishes and weaves, you can choose the perfect look that matches your GTR’s existing aesthetics, whether you prefer the classic carbon fiber weave or a striking glossy finish.
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Compatible with Most Aftermarket Systems: Whether you have a stock setup or extensive modifications, this diffuser works seamlessly with a wide range of aftermarket support, including exhaust systems and suspension upgrades.
Transform your Nissan GTR R35 into a true performance beast with our Carbon Fiber Undertray Diffuser. Not only will this upgrade enhance your vehicle's handling and stability, but it will also set you apart with its stunning appearance. Experience the perfect fusion of style and function on your next drive!
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)