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Find Rear Diffusers & Valances for your Mustang

HDPE Rear Diffuser; Matte Black (18-23 Mustang GT; 19-23 Mustang EcoBoost w/ Active Exhaust)Find parts that fit my vehicle

Item 427615
HDPE Rear Diffuser; Matte Black (18-23 Mustang GT; 19-23 Mustang EcoBoost w/ Active Exhaust)
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$305.99
12 Reviews
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-18% $305.99 kit Was $374.99

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    Frequently Bought Together

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Imposing High-Performance Design
      • Tough High-Density Polyethylene (HDPE) Construction
      • Matte Black Colorway
      • Hassle-Free Installation with Minor Drilling
      • Fits All 2018-2023 Ford Mustang GT Models and 2019-2023 Ford Mustang EcoBoost Models with Active Exhaust

      Description

      High-Performance Aerodynamic Style and Function. This HDPE Rear Diffuser in Matte Black is the aerodynamic upgrade that offers your Mustang a high-performance style to match its distinct muscle car design. This diffuser employs a novel 3-piece configuration featuring sculpted diffuser blades that project outward from your rear bumper’s lower border, giving this area an imposing look. Moreover, this rear diffuser’s tough HDPE construction makes it rigid enough to increase downforce at the rear, improving high-speed handling and cornering.

      Tough Build Quality. This rear diffuser assembly is made from high-quality 1/4-inch thick HDPE material, making it extremely tough yet light in weight. Furthermore, this material is precision-cut to exact parameters, offering a precise fit when installed. Rounding out its construction is a matte black colorway giving the assembly a sleek style.

      Hassle-Free Install Procedure. This rear diffuser is designed to install onto your Mustang’s factory rear diffuser using factory locations. Some assembly is needed before installation. You will also need to drill into your factory diffuser using the included self-tapping screws that may be required to properly fit the assembly onto your ride. Besides this step, installation is a fairly hassle-free procedure that’s accomplished using just basic hand tools and the included hardware.

      Application. This HDPE Rear Diffuser in Matte Black fits all 2018-2023 Ford Mustang GT models and 2019-2023 Ford Mustang EcoBoost models with Active Exhaust.

      Fitment:

      Details

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Rear Diffuser Center Section Assembly
      • (2) Driver and Passenger Side Rear Diffuser Side Section Assemblies
      • Mounting Hardware
      4.4

      Customer Reviews (12)

      Questions & Answers

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      Will It Fit My Mustang

      • EcoBoost - 19, 20, 21, 22, 23
      • GT - 18, 19, 20, 21, 22, 23