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Aeroflow Dynamics Rear Diffuser V5 | 2017-2021 Honda Civic Type-R - 1

Aeroflow Dynamics Rear Diffuser V5 | 2017-2021 Honda Civic Type-R

Special Order Item
Please see shipping policy for more info

sku-31664875831369

Finish
Finish: Gloss jet black
$ 879.98
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    🚨 Lead Time: 2 Weeks

    Designed for the 2017–2021 Honda Civic Type R (FK8)

    🔧 Direct Fitment
    Engineered to bolt directly onto the OEM rear bumper of the FK8 Type R without the need for modifications.

    🛠️ Material
    Crafted from aerospace-grade lightweight aluminum, offering both strength and weight savings for performance applications.

    ⚙️ Finish & Build Quality
    Fully CNC’d and professionally powder coated in gloss black for a sleek and durable finish. Pre-drilled for easy alignment and mounting.

    Made in the USA
    Proudly built in the United States with expert craftsmanship and attention to detail.

    🧰 Install-Friendly
    Ships with all required hardware for installation.
    Professional installation is highly recommended.

    💨 Why Add a Rear Diffuser to Your FK8?
    The V5 diffuser delivers aggressive styling while boosting underbody airflow control. It enhances high-speed stability by reducing rear-end turbulence, all while giving your Civic Type R a bolder, track-inspired appearance.

    Confirmed Exhaust Fitment:

    - AFE Takada 

    - HKS

    - Muffler Deletes

    - REMUS 

    - ARMYTRIX

     

    Please contact us for exhaust fitments.

    A rear diffuser is an automotive aerodynamic modification typically found mounted on the vehicle’s underbody located at the rear of the vehicle, underneath the rear bumper. As a vehicle is in motion, air flowing in the underbody is typically at high-speed and has low-pressure. The design and purpose of a diffuser are to help reduce drag and to create downforce by facilitating the airflow underneath the vehicle’s underbody. A diffuser is used to increase the air volume along its full length, thus creating a void that must be filled by air. This in turn creates a Venturi effect, meaning the air flow is accelerated at the beginning of the diffuser creating a low pressure, thus creating downforce. As the air travels along the full length of the diffuser, the high velocity air is eased back into normal velocity matching the ambient velocity at the rear of the vehicle reducing overall drag. With the addition of vertical “fins” attached to the diffuser, this helps to optimize the diffusers efficiency by ensuring that all air being drawn into the diffuser is from the underbody and isn’t being drawn from the upper body surfaces. A diffuser is best optimized with the addition of a front splitter to help mediate the underbody’s airflow.

    Aeroflowdynamics Install Instructions

    • All Aeroflow Dynamic Exhaust are Built-to-Order with a lead time of 4-8 weeks. Once the order has been placed, it cannot be canceled.

    No Returns for Aeroflow Dynamics Parts

    All sales are final. We do not accept returns or exchanges, except in the case of a defective product. If you receive a defective product, please contact us within 2 days of receiving the product to arrange for a return or exchange.

    To be eligible for a return or exchange due to a defective product, you must provide proof of purchase and the product must be in its original packaging.

    We reserve the right to refuse any returns or exchanges that do not meet the above criteria.

    If you have any questions or concerns about a product before making a purchase, please contact us for more information. We will be happy to assist you.

    By making a purchase on our website, you acknowledge and agree to this no return policy

    Aeroflowdynamics Return Policy

    WARRANTY:

    Warranty covers all defects in materials and craftsmanship over a 30-day period from purchase. Warranty is only applicable to the original purchaser/owner of the item(s). Warranty does not cover items damaged by customer misuse and or abuse. Aeroflowdynamics is NOT responsible for any and all damages caused by the improper installation of any product. Please mail sales@aeroflowdynamics.com with any questions in regards to warranty.

    If the package arrived damaged, please notify us within 48 hours of when you receive the package. After the 48 hours, we will not be able to offer a refund or ship you a replacement.

    Aeroflowdynamics Warranty

    AEROFLOW DYNAMICS LOGO

    AeroFlow Dyanmics

    AeroFlow Dynamics is a California-based automotive parts company specializing in high-quality, precision-engineered aluminum aerodynamic upgrades such as splitters, wings, diffusers, fender flares, and overlays. Their products are CNC-machined from aerospace-grade aluminum, powder coated for durability, and proudly made in the USA with strict quality control. They offer components for a wide range of makes and models, including Subaru, Honda, Toyota, BMW, and more.

    View More AeroFlow Dyanmics Products

    Popular FAQs

    Please read our FAQs page to find out more.

    Why Should I Buy AeroFlow Dynamics Products from JD Customs USA?

    Why Should I Buy AeroFlow Dynamics Products from JD Customs USA?

    JD Customs USA is a trusted retailer for AeroFlow Dynamics aerodynamic components, offering enthusiasts a reliable place to purchase high-quality splitters, wings, diffusers, side skirts, and aero accessories. When you buy AeroFlow Dynamics products from JDC, you are working with a retailer that understands vehicle-specific aerodynamics, fitment accuracy, and the balance between performance and street-driven usability.

    AeroFlow Dynamics is known for producing functional aero parts that combine aggressive styling with real-world aerodynamic benefits. JD Customs USA ensures these products are presented accurately and supported by a knowledgeable team that understands enthusiast builds.

    Are AeroFlow Dynamics Products from JD Customs USA Authentic?

    Yes. All AeroFlow Dynamics products sold by JD Customs USA are 100 percent authentic and sourced directly through authorized AeroFlow Dynamics distribution. This guarantees genuine materials, correct designs, and proper manufacturing standards.

    Purchasing through JD Customs USA protects customers from imitation aero parts, incorrect replicas, or poorly fitting alternatives commonly found through unauthorized sellers.

    Does JD Customs USA Help with AeroFlow Dynamics Fitment and Installation Questions?

    Absolutely. Aerodynamic components require precise fitment and proper installation to perform correctly. JD Customs USA provides guidance to help customers confirm:

    • Vehicle compatibility and year ranges
    • Mounting requirements and hardware expectations
    • Differences between cosmetic aero and functional aero setups
    • Street, track, or show-oriented use cases

    Our team helps ensure you choose the right AeroFlow Dynamics components for your goals before placing an order.

    Why Buy AeroFlow Dynamics from JD Customs USA Instead of Other Retailers?

    Many online retailers list aero parts with limited detail or unrealistic expectations. JD Customs USA provides accurate product descriptions, clear installation notes, and honest guidance, helping customers understand exactly what they are purchasing.

    We also emphasize transparency regarding drilling requirements, adjustability, and real-world usage so there are no surprises during installation.

    What Makes JD Customs USA the Right Place to Buy AeroFlow Dynamics Products?

    JD Customs USA is an enthusiast-driven retailer focused on quality, transparency, and long-term customer satisfaction. We curate AeroFlow Dynamics products that meet our standards for design, durability, and functional performance.

    When you purchase AeroFlow Dynamics products from JD Customs USA, you receive:

    • Genuine AeroFlow Dynamics aerodynamic components
    • Verified vehicle fitment and accurate product listings
    • Clear expectations for installation and use
    • Support from knowledgeable automotive enthusiasts
    • Secure checkout and careful order handling

    Choosing JD Customs USA ensures you are investing in authentic AeroFlow Dynamics aero products with the expertise and support needed to complete your build confidently and correctly.