$3,000 Sweepstakes! Enter Now >

Flat Underbody Panel Kit (15-20 Mustang GT350)Find parts that fit my vehicle

Item 438778
Our Price

$774.99 kit

Military, Medical & First Responders $38.75 Available in AM Cash Rewards.
Confirm Eligibility

CONFIRM THIS FITS YOUR VEHICLE!

Select a different vehicle Help?
Update or Change Vehicle

Item Options

    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Shop Owners Save More! Sign up for our dealer program

      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Reduce Drag
      • Increase Fuel Economy
      • Reduce Lap Times
      • Flat Underbody
      • Simple, Non-Invasive Bolt-On Design
      • CFD Tested Design
      • CNC Cut
      • CNC Press Brake Bent
      • Powdercoated Black For Durability
      • 5052 Aluminum Construction
      • Stainless Steel Hardware Throughout
      • Made In The U.S.A.
      • Fits 15-20 Mustang GT350 with Fender Evacuation Kit Required for Complete Compatibility; Modification Needed for Full Length Jacking Rails

      Description

      Underbody Aerodynamics Upgrade. The Flat Underbody Panel Kit dramatically improves the vehicle's underside by creating a smooth, flat surface that reduces drag and increases downforce. Designed for easy installation, it optimizes airflow under the car, making it ideal for both street driving and track use where performance gains matter.

      Construction and Appearance. Crafted from 5052 aluminum, the panels are CNC cut and precision bent using a press brake to ensure accuracy and fitment. Finished with a durable black powdercoat, the kit offers strength and corrosion resistance while maintaining a sleek, professional appearance.

      Installation. This kit features a simple bolt-on design requiring minimal modification aside from adjustments if running full length jacking rails. No extensive drilling is necessary, making it accessible for enthusiasts with basic mechanical skills.

      Application. Specifically engineered for the 2015–2020 Mustang GT350, this kit requires the Fender Evacuation Kit for complete compatibility. Slight modifications may be needed for compatibility with regular S550 chassis models.

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 3 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Underbody Panel Kit
      4.1

      Reviews of similar Engine Products (12)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • GT350 - 15, 16, 17, 18, 19, 20
      • GT350R - 15, 16, 17, 18, 19, 20