Sale

Stillen

Carbon Fiber Rear Diffuser

$2,099.00 $1,889.10 Save $209.90

SKU: AC-RL20FDMU500

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The Anderson Composites AC-RL20FDMU500 is a premium carbon fiber rear diffuser specifically engineered for the 2020-2022 Ford Mustang Shelby GT500. It features integrated UV inhibitors to protect against sun damage and fading, ensuring a long-lasting, premium finish. This rear diffuser is a direct-fit replacement, intended to integrate seamlessly with your vehicle's existing rear bumper. However, please note that mounting tabs may require modifications for optimal fitment, and minor adjustments may be necessary during the installation process. The rear bumper must be removed for proper installation, and additional clips and hardware may be required to achieve the best possible fit and finish. The product is exclusively designed for the Shelby GT500 model. Additionally, all users should be aware of California Proposition 65 warnings regarding potential exposure to chemicals such as Styrene and Bisphenol A. Customers are advised to inspect packaging and products carefully upon receipt and to report any damages within 24 hours.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandStillen
Part NumberAC-RL20FDMU500
CategoryExterior Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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