Carbon Rear Diffuser - G90 M5
- Mfg Part #
- A14B30-1301
- ECS Part #
- ES#5424532
- Brand
-
Product Details
Transform the rear end of your G90 M5 with the ADRO Carbon Fiber Rear Diffuser — a serious visual and aerodynamic upgrade that brings track-inspired design to BMW’s latest super sedan. Featuring bold geometry and race-bred styling, this diffuser adds depth, aggression, and purpose to the rear profile while staying true to the M5’s refined factory lines.
Constructed from ultra-lightweight pre-preg carbon fiber, the diffuser delivers an ideal balance of strength, weight savings, and motorsport presence. The tight, uniform weave and high-gloss finish provide true show-quality looks, while the design itself is all business. Developed using full 3D scans of the G90 platform and validated through Computational Fluid Dynamics (CFD), it integrates seamlessly with the factory rear bumper for clean, OEM-plus fitment — no trimming, cutting, or modification required.
The sculpted fins and sharp contours aren’t just for looks. They’re engineered to manage airflow more effectively, helping reduce rear-end lift and improve high-speed stability without sacrificing everyday drivability.
Why it belongs on your G90 M5:
Prepreg Carbon Fiber Construction – Lightweight, high-strength carbon fiber with a flawless, high-gloss finish
OEM-Perfect Fitment – 3D scanned for precise integration with the factory rear bumper
CFD-Validated Aero – Designed to reduce drag and enhance stability at speed
Track-Inspired Design – Aggressive fins and sharp lines that elevate the rear profile
Bottom line: whether you’re chasing functional aero or dialing in a more aggressive look, the ADRO G90 M5 Rear Diffuser delivers performance and presence in equal measure. Bolt it on and let the rear end do the talking.
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| BMW | G90 | M5 | S68 4.4L | Use vehicle selector to confirm fitment |
This product is not eligible for Lifetime Replacement
Return and Exchanges
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New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
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Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
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