Exterior Components› Body Panels and Components

MMD by FOOSE

GT350 Style Rear Diffuser

$153.99

SKU: 401441

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

Moderate — 2–4 hours

Overview

The MMD by FOOSE GT350 Style Rear Diffuser is a custom styling accessory designed for 2015-2017 Mustang GT Premium and EcoBoost Premium models. It features a design by Chip Foose and is constructed from injection molded TPO material for durability.

Installation is straightforward, though it requires permanent modification to the stock rear bumper cover and can be completed in approximately two hours. The diffuser is also compatible with factory-installed backup sensors.
Show original supplier description
Enhance the appearance of your 2015-2017 Premium Package Mustang with the MMD by FOOSE GT350 Style Rear Diffuser. This accessory, designed by renowned custom car builder Chip Foose, adds a custom show car look and flows seamlessly with the existing lines of your Mustang's rear bumper. Constructed from high-pressure injection molded, high-strength thermal plastic olefin (TPO), this diffuser is built for durability and impact resistance, suitable for daily driven vehicles. MMD uses original OEM CAD data from Ford to ensure a precise fit. The installation process is described as straightforward but involves permanently modifying the stock rear bumper cover to remove the factory diffuser. The estimated installation time is around two hours, requiring light to moderate mechanical skill. It is specifically designed for 2015-2017 GT and EcoBoost Mustangs equipped with the factory Premium Chassis Packages only (Trim Levels: 200A/201A/400A/401A). Important compatibility note: This diffuser is not compatible with quad-tip rear valances.

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

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Specifications

BrandMMD by FOOSE
Part Number401441
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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