Exterior Components Body Panels and Components

MMD

Rear Valance Diffuser

$279.99

SKU: 387426

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The MMD by Foose Rear Valance Diffuser is a custom styling accessory designed for 2005-2009 GT Mustangs with the factory bumper cover. It features an aggressive, race-inspired appearance and is constructed from durable, lightweight thermo-formed ABS plastic. The diffuser includes a factory-style grained texture and offers an OEM fit and finish.
Show original supplier description
The MMD by Foose Rear Valance Diffuser brings custom styling designed by Chip Foose to your 2005-2009 GT Mustang. Engineered using original Ford CAD data, it ensures a precise fit and adds an aggressive, race-inspired aesthetic. This valance is manufactured from high-impact, thermo-formed ABS plastic, providing superior durability and a lightweight construction. Its factory-style grained texture enhances its OEM appearance and helps resist damage from road debris. Installation is straightforward and requires no drilling, utilizing supplied 3M automotive bonding tape for a secure attachment to the factory rear bumper cover. This rear valance diffuser is specifically designed for 2005-2009 GT Mustang models equipped with the stock rear bumper cover.

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

BrandMMD
Part Number387426
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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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