2014-2020 BMW i8 AF-1 Rear Wing Spoiler (GFK) - 1 Piece - 117849
Part#: ed_117849
Aero Function
Information:
⚠️FIBERGLASS ➡ REQUIRES PREP WORK⚠️ SHIPS FROM USA
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Fullerton, CA
Introducing the AF-1 Rear Diffuser (GFK) for the 2014-2020 BMW i8, a perfect blend of style and performance from Aero Function. This custom Diffusers with proper installation is designed to enhance the aerodynamics of your vehicle, providing improved downforce and stability at high speeds depending on the design. Rarely seen on the street, the AF-1 Rear Diffuser (GFK) is made from FRP materials and offers a unique custom style.
The AF-1 Rear Diffuser (GFK) is not just about aesthetics; many aero parts are also engineered to deliver functional benefits such as downforce. Depending on the design, this Diffusers may help to your BMW i8 feel grounded and enhance its head-turning appeal
One of the standout features of the AF-1 Rear Diffuser (GFK) is its lightweight construction. Made from durable yet lightweight FRP materials, it minimizes any added weight to your vehicle, which is crucial for maintaining its performance characteristics. The Diffusers's aerodynamic design also reduces drag, further enhancing your car's efficiency and speed.
Installation of the AF-1 Rear Diffuser (GFK) must be performed by an experienced body shop, even though the part is designed for the 2014-2020 BMW i8 it is not a bolt-on part. Keep in mind that the hardware is not included, you will likely need custom and factory hardware such as screws, bolts and may need custom brackets to properly install.
In addition to its performance and customization benefits, the AF-1 Rear Diffuser (GFK) offers a customizable appearance. This flexibility allows you to personalize your BMW i8 to reflect your unique style while enjoying the performance benefits of this custom accessory.
The AF-1 Rear Diffuser (GFK) of the Aero Function line does undergo a quality inspection during the manufacturing and packaging process. However, always be sure to open and inspect each part upon delivery.
Whether you're a professional racer or an auto enthusiast looking to upgrade your BMW i8, the AF-1 Rear Diffuser (GFK) from Aero Function is the perfect choice. It combines cutting-edge design, light weight materials, and practical benefits to transform your vehicle. Experience the difference with the AF-1 Rear Diffuser (GFK) and take your driving experience to the next level.
BMW Diffusersi8 DiffusersAero Function DiffusersBMW FRP Diffusersi8 FRP Diffusers
Fins sold seperately
New: A brand-new, unused, unopened, item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in our retail store. To be installed professionally by a bodyshop with a valid automotive repair business license. Fiberglass parts always require prep work before they can be primed and painted. This product is made with fiberglass material, therefore it will exhibit chips, breaks, cracks, waves, scratches and holes which require modification. It is necessary to dry fit and drill mounting holes and preform body work before paint. Cutting and adding of fiberglass may be required for proper fitment. Ships direct from the manufacturer or a distributor. Primer finish. Hand layup is the manufacturing process used for the majority of our fiberglass parts. Hoods require hood pins. We do not offer any guarantee of fitment on vehicles that have been in involved in accidents and/or have body damage or customization.









Aero Function diffusers are aftermarket aerodynamic accessories designed specifically for enhancing style and performance. These diffusers are not “direct bolt-on” parts and may require significant preparation, such as sanding, fitting, or custom bodywork. Common installation challenges can include potential warping, cracking, or fitment issues if the diffuser is not handled or installed correctly.
Aero Function diffusers are generally installed below the rear bumper, and in many cases, the bumper may need to be modified to ensure a proper fit. It’s important to select a diffuser that is compatible with specific bumpers, trims, or aftermarket styles to avoid fitment issues.
Separate mounting hardware, such as L-brackets, bolts, screws, washers, and fasteners, is typically required but not included in the package. L-brackets help attach the diffuser securely to the vehicle’s chassis or bumper, while additional supports may be needed depending on the design and fitment. Installers will need to source the necessary materials separately to ensure compatibility with both the diffuser and the vehicle.
For the best results, Aero Function recommends professional installation by a custom shop experienced in aftermarket accessories. Many standard auto repair shops may lack the expertise to handle the specific fitment and hardware requirements for these diffusers.
Please note that these diffusers are intended strictly for off-road and show use. Due to strict Department of Transportation (DOT) regulations, most Aero Function diffusers are not street-legal. Aero Function does not endorse or recommend using these diffusers on public roads or highways.
Items sold on this website may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.