2024+ Ford Mustang Dark Horse Rear Diffuser Gloss Black Quad Tips
- Free Shipping Over $399
- Backed By Manufacturer Warranty
- Made to Order - Production Time in Description

PRE-ORDER! SHIPS OUT 8-12 WEEKS, AFTER PURCHASE DATE. ELIGIBLE FOR STORE CREDIT, IF REQUESTED TO BE CANCELLED.
Product Name: Auto Addict USA 2024+ Ford Mustang Dark Horse Rear Diffuser - Gloss Black Quad Tips
Compatible Trims: EcoBoost and GT
Overview:
Transform the rear profile of your 2024+ Ford Mustang Dark Horse with the high-performance Auto Addict USA Rear Diffuser. Designed with precision and crafted for Mustang enthusiasts, this diffuser enhances your car’s aerodynamic performance while delivering a striking, aggressive aesthetic. Perfectly suited for EcoBoost and GT trims, it is engineered to complement the Mustang's bold styling cues.
Key Features:
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Premium Material:
- Constructed from high-grade ABS plastic, known for its durability, lightweight properties, and resistance to weather elements.
- The gloss black finish adds a sleek, modern touch, resisting fading and chipping for long-lasting visual appeal.
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Aerodynamic Benefits:
- Enhances airflow under the vehicle, reducing drag and improving overall stability at high speeds.
- Ideal for performance-driven drivers who want to maintain the Mustang’s edge on the road or track.
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Quad Tip Integration:
- Designed to fit seamlessly with factory or aftermarket quad-tip exhaust systems.
- Precision-cut openings ensure a snug, secure fit without compromising functionality.
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Direct Fitment:
- Custom-engineered for the 2024+ Ford Mustang platform, ensuring hassle-free installation.
- No cutting or major modifications required—fits like OEM equipment.
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Aggressive Design:
- Incorporates sharp, angular fins and contours that emphasize the Mustang’s sporty, aggressive character.
- Complements the design of the Dark Horse trim while offering compatibility with EcoBoost and GT models.
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Easy Installation:
- Comes with all necessary hardware and detailed installation instructions.
- Can be installed with basic tools, making it a practical upgrade for enthusiasts of all skill levels.
Specifications:
- Finish: Gloss Black
- Material: ABS Plastic
- Weight: Lightweight, yet robust for optimal performance
- Compatibility: Ford Mustang Dark Horse, EcoBoost, GT (2024+)
- Exhaust Compatibility: Quad Tip
Why Choose Auto Addict USA?
With a passion for performance and design, Auto Addict USA delivers aftermarket parts that elevate your driving experience. Each product undergoes rigorous quality checks to meet the highest industry standards.
Package Includes:
- Rear Diffuser Panel
- Installation Hardware Kit
- Instruction Manual
Note: Professional installation is recommended for optimal fit and function.
Order Processing Time
In-Stock Items
All in-stock ground items are processed and shipped within 5–7 business days after the order is placed. Orders are not processed or shipped on weekends or holidays.
Made-to-Order & Custom Items
All made-to-order and custom items are typically processed and shipped within 8–16 weeks, but may take longer during periods of high order volume.
If you are unsure about the processing time for a specific item, please contact us at support@simpbuilt.com prior to placing your order.
Pre-Order / Made-to-Order Shipping
Pre-order and made-to-order items will ship within the timeframe stated on the product page, typically 8–16 weeks after purchase, unless otherwise noted.
Please note:
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All shipping dates are estimates only
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Delays may occur due to production or carrier-related issues
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We will make every effort to keep you informed of any significant changes to your order status
Shipping Rates & Delivery Estimates
Free Shipping (Lower 48 States)
We offer free ground shipping on orders over $150 within the lower 48 United States for items stocked in Simp Built warehouses.
Simp Built reserves the right to charge shipping in cases where the delivery address exceeds carrier size, weight, or package limitations. This determination is made solely at the discretion of Simp Built.
Standard Shipping Service
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Economy Shipping: Estimated 5–7 business days after processing
Delivery delays may occasionally occur due to weather, carrier issues, or other unforeseen circumstances.
Shipment Confirmation & Order Tracking
Once your order ships, you will receive a shipment confirmation email containing your tracking number(s).
Tracking information may take up to 24 hours to become active.
Shipping to P.O. Boxes or APO/FPO Addresses
We do not ship to P.O. Boxes or APO/FPO addresses. A valid physical address is required for all orders.
International Shipping Policy
Simp Built currently does not ship outside of the United States.
If you are interested in placing an international order, please contact us directly prior to purchase.
Customs Brokers
For any international orders (if approved), customers are required to hire and coordinate with a customs broker to manage the import process. The customer is solely responsible for all customs procedures. Simp Built does not arrange customs brokers or manage customs clearance on the customer’s behalf.
Shipping Damages & Liability
While we take every precaution to package items securely, Simp Built is not responsible for damage caused by shipping carriers, including but not limited to freight/LTL carriers, FedEx, or UPS.
Please inspect all packages immediately upon delivery.
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All damage claims must be filed directly with the carrier
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Failure to file a claim promptly may result in claim denial
Lost or Stolen Packages
Simp Built is not responsible for lost or stolen packages once they have been marked as delivered by the carrier.
Please ensure your delivery location is secure. For missing packages, contact the carrier directly.
Return Shipping
Customers are responsible for all return shipping costs unless the return is due to a defect or an error on our part.
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Shipping costs are non-refundable
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Return shipping fees will be deducted from any approved refund
Additional Shipping Information
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For returns valued over $75, we strongly recommend using a trackable shipping service
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We do not guarantee receipt of returned items without tracking
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Any customs fees, duties, or taxes (if applicable) are the responsibility of the customer
Eligibility for Returns
To be eligible for a return, the item must be unused, in its original packaging, and in the same condition as when received. Any item that has been installed, attempted to be installed, or is not in its original condition will not be accepted for return.
All returns must be accompanied by a receipt or proof of purchase. Any and all returns must be approved by Simp Built Custom and accompanied by a Return Merchandise Authorization (RMA) number. Any return received without an approved RMA will be denied, and the customer will forfeit all shipping costs and applicable restocking fees associated with the return. There are no exceptions to this policy.
Non-Returnable Items
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Custom Orders (no refunds; store credit may be offered at our discretion if cancellation is requested prior to shipment)
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Open box items
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Used, modified, or painted items
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Any item that has been installed or shows signs of attempted installation
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Any item that is not in its original condition or has missing components
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Items without valid proof of purchase
Cancellation Policy
Order cancellations must be requested within 24 hours of purchase and are subject to approval by Simp Built Custom.
If a cancellation request is approved within the 24-hour window, the order will be subject to a 30% restocking fee. After 24 hours, orders cannot be cancelled, as processing or production may have already begun.
Custom items are not eligible for cancellation or refund once production has started.
Restocking Fee
A 30% restocking fee will be applied to all approved returns. This fee covers processing time, labor, and materials associated with preparing and packing returned items.
Return Shipping Costs
Customers are responsible for paying all return shipping costs. Shipping costs are non-refundable. If a refund is issued, the cost of return shipping will be deducted from your refund.
Refunds
Once your authorized return is received and inspected, you will be notified via email of the approval or rejection of your refund.
If approved, the refund — minus the 30% restocking fee — will be processed and automatically applied to the original method of payment within 7–10 business days.
Inspection of returned items may include both a physical condition check and an operational test. Inspections may take 2–4 business days after receipt before a refund is processed.
Late or Missing Refunds
If you have not received your refund, please take the following steps:
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Check your bank account again
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Contact your credit card company, as posting times may vary
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Contact your bank for additional processing information
If you have completed these steps and still have not received your refund, please contact us at support@simpbuilt.com
Shipping Instructions for Returns
Authorized returns must be shipped using a trackable shipping service. For items valued over $75, we strongly recommend purchasing shipping insurance.
SimpBuiltCustom is not responsible for lost, damaged, or missing return shipments. Customers are fully responsible for any charges or damages related to returned goods.
