

Carbon Fiber Rear Bumper Diffuser - Nissan 370Z Z34
The Carbon Fiber Rear Bumper Diffuser for the Nissan 370Z Z34 is a performance-oriented aftermarket accessory designed to enhance the aerodynamics, visual appeal, and overall sporty character of the vehicle's rear end. Here are key features and aspects of this component:
-
Material and Construction:
- Crafted from high-quality carbon fiber, the rear bumper diffuser combines lightweight properties with high strength. Carbon fiber is chosen for its durability and ability to withstand the elements, making it ideal for exterior applications.
-
Aerodynamic Enhancement:
- The primary function of the rear bumper diffuser is to manage and control the airflow underneath the vehicle. By optimizing aerodynamics, the diffuser helps reduce drag and increase downforce, contributing to improved stability and handling performance, especially at higher speeds.
-
Design and Style:
- Tailored specifically for the Nissan 370Z Z34, the diffuser features a design that complements the car's lines and adds a touch of aggressiveness to the rear bumper. Carbon fiber's unique weave pattern often enhances the visual appeal, giving the vehicle a sportier and more customized appearance.
-
Precision Fitment:
- To ensure a seamless integration with the factory rear bumper, the diffuser is typically precision-engineered and designed for easy installation. Proper fitment maintains a cohesive and factory-like appearance, with cutouts for exhaust tips and other features as needed.
-
Installation and Mounting:
- The diffuser is often designed for straightforward installation, and many aftermarket options come with detailed instructions and mounting hardware. Depending on the specific model, installation may involve bolting, clipping, or adhesive application.
-
Exhaust Compatibility:
- Some rear bumper diffusers are designed to accommodate aftermarket exhaust systems, providing cutouts or adjustable features to ensure compatibility. This allows enthusiasts to retain or upgrade their exhaust systems while still benefiting from the aerodynamic enhancements of the diffuser.
-
Heat Resistance:
- Carbon fiber is known for its heat-resistant properties, making it suitable for use in proximity to exhaust components. This ensures durability and longevity, even under the heat generated by the vehicle's exhaust system.
-
Customization Options:
- Depending on the manufacturer, there may be different finish options available, allowing car owners to personalize their 370Z's appearance. This can include variations in carbon fiber weave patterns or even painted accents.
Fitment:
- Nissan 370Z Z34 2009-2020
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)