





Carbon Fiber Rear Diffuser - Nissan 400Z RZ34
Enhance the aerodynamic performance and sleek aesthetics of your Nissan 400Z RZ34 with the Carbon Fiber Rear Diffuser. This high-quality upgrade is designed to improve airflow and add a race-inspired touch to the rear of your vehicle, optimizing both its looks and performance.
Key Features:
-
Genuine Carbon Fiber Construction: Crafted from authentic, high-grade carbon fiber, this rear diffuser offers a lightweight yet incredibly strong upgrade. The carbon fiber weave provides a modern, sporty look while ensuring durability and resistance to wear.
-
Improved Aerodynamics: The diffuser is designed to enhance airflow under the rear of your 400Z, reducing aerodynamic drag and increasing downforce. This results in better high-speed stability and improved handling, contributing to a more controlled and dynamic driving experience.
-
Custom Fit for Nissan 400Z RZ34: Engineered specifically for the Nissan 400Z RZ34, ensuring a precise fit and seamless integration with the existing rear bumper. The diffuser aligns perfectly with your vehicle’s design, providing a factory-like appearance with added performance benefits.
-
Aggressive Styling Enhancement: The carbon fiber finish adds a distinctive, high-performance look to the rear of your vehicle. The diffuser's sleek design and glossy finish complement the 400Z’s sporty character, giving it a more aggressive and race-ready appearance.
-
Durable and Weather-Resistant: Carbon fiber is known for its strength and resistance to environmental elements. This rear diffuser is built to withstand various driving conditions and maintain its high-quality appearance over time.
-
Easy Installation: Comes with all necessary mounting hardware and detailed instructions for a straightforward installation process. The diffuser is designed to attach securely to the existing rear bumper with minimal modifications.
-
Weight Reduction Benefits: The lightweight nature of carbon fiber helps reduce the overall weight of your vehicle, which can contribute to better acceleration, braking, and handling performance.
Upgrade the rear end of your Nissan 400Z RZ34 with the Carbon Fiber Rear Diffuser and experience enhanced aerodynamic efficiency and a striking visual transformation. This premium component not only improves the functionality of your vehicle but also adds a touch of sophistication and sportiness to its overall design.
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)