Name: ZL1 Addons Ford Mustang GT Performance Pack Stealth Diffuser | 23158001 - Function Factory Performance
Brand: ZL1 Addons
SKU: 23158001
Price: 142.99 USD
Availability: InStock

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ZL1 Addons Mustang GT Performance Pack Stealth Diffuser for Ford Mustang

ZL1 Addons Mustang GT Performance Pack Stealth Diffuser for Ford Mustang - Image 2

ZL1 Addons Ford Mustang GT Performance Pack Stealth Diffuser

Our all new Mustang 2024-2025 GT Performance Pack Stealth Diffuser is now available for all PP models with a Quad Tip setup.

$142.99

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Category: DiffusersSKU: 23158001

ZL1 ADDONSFORM & FUNCTIONPN: 23158001

Product Overview

Our all new Mustang 2024-2025 GT Performance Pack Stealth Diffuser is now available for all PP models with a Quad Tip setup. This products comes with an aluminum belly pan to smooth and diffuse the air coming out from under the car that is attached to our HDPE outward facing panel that has an automotive finish. We offer this product as a one piece or three piece design, please make sure you select the right product below.

This product is functional and will diffuse the air properly from the differential to the rear of the vehicle unlike other brands . Our product is designed to bolt up to the factory valance as an addon.

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.

Key Features

✔Mustang 2024-2025 GT Performance Pack

✔This product will NOT work for the Dark Horse

✔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.

✔The Mustang GT Performance Pack diffuser will use 2 less bolts for the install on the main panel. The remainder of the install is the same as the video posted below.

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	23158001
Brand	ZL1 Addons
Type	Diffusers
Material	HDPE (High-Density Polyethylene)
Origin	Poway, California — Made in USA

Vehicle Fitment

2024–2025 Ford Mustang (S650)GTLTPerformance Pack

This product will NOT work for the Dark Horse

Product Finish:

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

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 • Free Shipping on Orders Over $199

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📦 How long does it take for my parts to ship? +

If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.

For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.

Either way, we'll keep you updated so you know exactly when your parts are leaving the pit lane.

🚚 Do you send tracking with my order? +

Absolutely! Once your order ships, you'll receive an email with a tracking link so you can follow its journey from our shop to your doorstep.

If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.

🛡️ What if my parts get lost or damaged? +

Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.

If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.

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