FREE 1 to 3-Day Delivery on Orders $119+ Details

Talk to a Mustang Sales Tech
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Black Friday is Here! Shop Early Deals >
Get $80 Off Redeem Now >

Find Rear Diffusers & Valances for your Mustang

Stealth Diffuser Side Extensions (18-23 Mustang EcoBoost w/o Active Exhaust)Find parts that fit my vehicle

Item 439987
Stealth Diffuser Side Extensions (18-23 Mustang EcoBoost w/o Active Exhaust)
Verify parts fit and get product recommendations.
Mustang Sales Techs: Connect Now M-F 8:30A-11P, Sat-Sun 8:30A-9P
Call now 1-877-887-1105 Chat Now
$0.00
Want $10? Write one of the first 5 reviews 4.7 Similar Exterior product ratings
Our Price

$149.99 set

to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    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

    Loading Indicator

      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Stealth Diffuser Side Extensions
      • Enhanced Aerodynamics
      • Improved Handling
      • Fits 2018-2023 Mustang EcoBoost Models without Active Exhaust

      Description

      Design. The Mustang EcoBoost's aerodynamics are enhanced by the skillfully crafted Stealth Diffuser Side Extensions. Through improved airflow channeling around the vehicle's sides, these extensions lessen drag and may even improve fuel efficiency.

      Control. Better handling can also be achieved by these Stealth Diffuser Side Extensions by maximizing the airflow surrounding the vehicle. Particularly at faster speeds, the decreased air pressure beneath the vehicle contributes to an increase in downforce and a more stable ride.

      Installation. Putting these Stealth Diffuser Side Extensions on your Mustang EcoBoost is easy and requires no drilling.

      Application. These Stealth Diffuser Side Extensions fit 2018-2023 Mustang EcoBoost models without 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

      • (2) Stealth Diffuser Side Extensions
      • Mounting Hardware
      • Instruction Manual
      4.7

      Reviews of similar Exterior Products (57)

      Reviews of similar Exterior products have an average rating of 4.7 out of 5

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

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