ZL1 Addons Stealth Diffuser for 2015-2023 Mustang GT | FFP
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ZL1 Addons 2015-2017 Ford Mustang Stealth Diffuser

Confirmed Fit: 2015–2017 Ford MUSTANG All

Our all-new Mustang 15-17 Diffuser is now available for all dual-tip GT/ECO Premium models. This product comes with an aluminum belly pan to smooth and diffuse the air from under the car attached to our HDPE outward-facing panel with an automotive finish.

2–3
Weeks
Hand-Built in California
Every ZL1 Addons part is precision-machined and hand-finished to order at their Poway, CA facility. Please allow 2 to 3 weeks for production.
Vehicle Make
Ford
Vehicle Model
Mustang
$362.99

or as low as $30.25/mo with Affirm

Available For Purchase

Available

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SKU: 23155001 Brand: ZL1 Addons
ZL1 ADDONSFORM & FUNCTIONPN: 23155001

Product Overview

Our all-new Mustang 15-17 Diffuser is now available for all dual-tip GT/ECO Premium models. This product comes with an aluminum belly pan to smooth and diffuse the air from under the car attached to our HDPE outward-facing panel with an automotive finish. We offer this product as a one-piece or three-piece design; please make sure you select the right product below.

Unlike other brands, this product is functional and will diffuse the air properly from the differential to the rear of the vehicle. Our product is designed to bolt up to the factory valance as an add-on.

Note: The 2015-2017 Mustang has 2 different types of rear valances, the Premium and Non-Premium. The biggest tell on which your vehicle has in the center fins on the valance between the exhaust and the rear brake light .

Mustang 15-17 GT & ECO Premium with dual tip exhaust (1 exhaust pipe per side).

Standard Aluminum – This product will have an HDPE main diffuser and fins with a raw aluminum* attachment plate.

Key Features

Mustang 15-17 GT & ECO Premium with dual tip exhaust (1 exhaust pipe per side).
Coming Soon – GT Premium with Quad Tip exhaust
Coming Soon – GT/ECO Non-Premium Models
Standard Aluminum – This product will have an HDPE main diffuser and fins with a raw aluminum* attachment plate.
Black Powder Coat Aluminum – This product will have an HDPE main diffuser and fins with a black powder coated aluminum attachment plate.
This product is built to order and will take 5-7 business days to build and prep for shipment. Black powder coated panels have a 7-10 business day build lead time.
The aluminum that attaches the diffuser to the car is NOT a fine finished piece, it will have fine marks and scratches obtained during manufacturing. This part of the diffuser is not viewable when the car is sitting on the ground.
The primary diffuser fins will ship unattached due to sizing and shipping rates, a Philips head screw drive or drill will be needed to assemble just the fins to the main panel. Holes are already in place to line the product up.

Available Options

Diffuser Style

Main Diffuser Center Only (Standard Aluminum)Main Diffuser Center OnlySide Extensions Only (Two Side Pieces w/ Fins)Full 3 Piece Diffuser Kit (Standard Aluminum)Full 3 Piece Diffuser Kit

Specifications

Part Number 23155001
Brand ZL1 Addons
Type Diffusers
Material HDPE (High-Density Polyethylene)
Origin Poway, California — Made in USA

Vehicle Fitment

2015–2017 Ford MustangGTEcoBoostV6LTPerformance PackPP1

Installation & Overview

★ Made in USA: All ZL1 Addons products are designed, manufactured, and assembled in Poway, California. Built with precision CNC and laser-cut processes for exact OEM fitment.

ZL1 ADDONSAuthorized Retailer • Made in USA
Vehicle Make Ford
Vehicle Model Mustang

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