
2021-2026 BMW G82 G83 M4 Dry Gloss Double Sided Carbon Fiber Type-F1 Shark Fins Rear Diffuser
Upgrade the rear of your BMW with the 2021-2026 BMW G82 G83 M4 Dry Gloss Double Sided Carbon Fiber Type-F1 Shark Fins Rear Diffuser, proudly manufactured by Auto Addict USA. Inspired by Formula 1 aerodynamics, this premium rear diffuser enhances the aggressive styling of your M4 while improving airflow beneath the vehicle to help reduce turbulence and increase rear-end stability at higher speeds.
Manufactured using pre-preg double-sided dry carbon fiber and precision CNC-molded tooling, this rear diffuser delivers exceptional strength, lightweight performance, and OEM-quality fitment. The double-sided dry carbon fiber construction features a flawless carbon fiber weave on both the front and backside, ensuring a premium finish from every angle.
The aggressive Type-F1 Shark Fin design helps optimize underbody airflow while giving your BMW G82 Coupe or G83 Convertible an unmistakable motorsport-inspired appearance. Integrated into the diffuser is an F1-style LED rear fog/brake light, adding both style and functionality to your build. The LED light can be spliced into a positive and negative power source, allowing it to be wired as a running light, brake light, or custom lighting application based on your installation preferences.
Finished with a UV-resistant high-gloss clear coat, this diffuser is engineered to withstand daily driving, spirited performance, and show-quality builds while maintaining its deep carbon fiber finish.
Whether you're building a street-focused M4 or a track-inspired project, the Auto Addict USA Type-F1 Shark Fins Rear Diffuser offers the perfect combination of lightweight performance, premium craftsmanship, and functional aerodynamics.
Features
- Manufactured by Auto Addict USA
- Fits 2021-2026 BMW G82 M4 Coupe
- Fits 2021-2026 BMW G83 M4 Convertible
- Premium pre-preg double-sided dry carbon fiber construction
- Precision CNC-molded for superior OEM-style fitment
- Lightweight, high-strength design
- UV-resistant high-gloss clear coat
- Formula 1-inspired Shark Fin aerodynamic design
- Helps improve underbody airflow and rear-end aerodynamic efficiency
- Integrated F1-style LED rear fog/brake light
-
F1 LED light can be spliced into a positive and negative power source for custom wiring applications
- Double-sided carbon fiber finish for a premium appearance
- Direct installation utilizing factory mounting locations
Vehicle Fitment
- 2021-2026 BMW G82 M4 Coupe
- 2021-2026 BMW G83 M4 Convertible
Complete your BMW G82/G83 M4 with the premium craftsmanship of Auto Addict USA and experience the perfect combination of luxury styling, lightweight dry carbon fiber construction, and race-inspired aerodynamic performance.
All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier.
Special arrangements may need to be made for international orders and oversize packages.
In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim.
Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package.
1) Keep the product and its original packaging and box
Make a list of the damaged or lost item(s)
2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us
3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued.
4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you.
If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file.
SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement.
In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect.
To return a item back to us, please do the following:
1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused.
2. Package the item up in original packaging unless deemed unuseable
3. Include the UNUSED parts and any additional information that was included
4. Include a copy of your receipt
5. Write a brief description of the problem with the product
6. If you have a receipt for the return shipping include as well
7. We DO NOT accept any freight collect packages
8. Once we have received the above information we will notify you via email or phone and let you know the status.