15-23 Ford Mustang Roush Performance 421883 Primed Rear Spoiler

The Roush Performance 421883 Primed Rear Spoiler is a rear spoiler that improves the airflow, cooling, and performance of your 2015-2023 Ford Mustang. It has a factory-primed surface that is easy to color match to your Mustang.

Top Features:

  • Increases airflow to the radiator by 40% over the stock grille
  • Made of injection-molded ABS with a black stipple finish
  • Easy to install with no cutting or drilling required
  • 90-day limited parts warranty from Roush

Vehicle Fitment:

  • 2015-2023 Ford Mustang V6
  • 2015-2023 Ford Mustang GT
  • 2015-2023 Ford Mustang Boss 302
  • 2015-2023 Ford Mustang California Special
Vendor: Roush
SKU: RSH421883
Availability: (Special Order Item)
$ 379.99 USD
On-Sale $ 379.99 USD
Normally $ 379.99 USD
Save $ 0.00
Better hurry, only 0 left in stock.

Secure Shopping with Hassle Free Returns

Free Shipping on orders over $149

10 customers are viewing this product
UPC: 844764005457
  • More Power Tuning
  • More Power Tuning

Proposition65 Warning: Cancer and Reproductive Harm

Roush Performance 421883 Primed Rear Spoiler

Add some extra flair and aerodynamics to your 2015-2023 Ford Mustang with the Roush Performance 421883 Primed Rear Spoiler. This spoiler is made of lightweight and durable ABS plastic with a factory-primed surface that is easy to color match to your Mustang. It features an aggressive angular design that complements the sleek lines of your Mustang and improves the airflow over the rear end.

Key Features:

  • Fits 2015-2023 Ford Mustangs including V6, GT, Boss 302, and California Special
  • Made of injection-molded ABS plastic with a factory-primed surface
  • Includes all required hardware and templates
  • Does not include the Roush Stage 3 emblem seen in the picture

Benefits:

  • Enhances the appearance and performance of your Mustang
  • Reduces drag and increases downforce at high speeds
  • Resists impact and corrosion
  • Easy to install with no cutting or drilling required
  • Backed by a 90-day limited parts warranty from Roush

Product Specs:

  • Part Number: 421883
  • Material: ABS
  • Finish: Factory-Primed
  • Spoiler Type: Rear Spoiler
  • Spoiler Configuration: Single
  • Weight: 5 lbs
  • Dimensions: 42 x 15 x 9 inches

Install Difficulty Level:

Installing the Roush Performance 421883 Primed Rear Spoiler is easy and can be done in about two hours with basic hand tools. You just need to remove the factory spoiler (if equipped) and replace it with the new spoiler using the provided hardware and templates. The installation instructions are clear and simple to follow.

Vehicle Fitment:

The Roush Performance 421883 Primed Rear Spoiler is compatible with the following vehicles:

  • 2015-2023 Ford Mustang V6
  • 2015-2023 Ford Mustang GT
  • 2015-2023 Ford Mustang Boss 302
  • 2015-2023 Ford Mustang California Special

If you have any questions about this product or want to report any inaccuracies in this product description, please contact the MPT Performance experts at (407) 636-7077 or by email.

Shipping Policy

MPT is proud to offer free shipping on most orders over $149.

  • Free shipping applies only to the contiguous United States. Shipping and handling charges will apply to orders outside the contiguous US, and the buyer is responsible for any duty fees or taxes their home country may charge to import goods.
  • With free shipping, we will choose the best shipping method for your order. We use all major carriers, including USPS, FedEx, UPS, and DHL.

Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
  • We do not process orders on weekends or observed holidays, which do not count as business days.
  • Physical items that are in stock at MPT and ordered by 4PM EST will be shipped the same day. Orders placed after 4PM EST will be processed on the following business day.

Special Considerations:

  • Items not stocked at our location will follow the same processing times but may experience lead-time delays and could incur additional charges. Shipping methods may vary for these items based on what was paid and the requested delivery speed. If you need an item by a specific deadline, please contact an MPT Expert.
  • SCT Tuner Orders with the Prioritized Order option must have their tune forms submitted by 3PM EST to be completed the same day. Forms submitted after this time will be processed the next business day.
  • Orders will ship to the billing address listed on your order. If paying by credit or debit card, we can only ship to the billing address. Contact an MPT Expert for assistance if you need a different shipping address.

MPT Performance Returns and Refund Policy

  • A Return Authorization Number (RA #) is required for all returns. Please contact an MPT Expert to obtain an RA# before sending anything back.
  • MPT tuning charges and license fees are non-refundable. The sale is final once MPT has sent the tune file via email, which applies to both new tune purchases and tune updates.

Returnable Products:

  • Products (other than MPT Tunes) may be returned within 30 days as long as they have not been installed and are in brand new, unused condition with original packaging. Installed products are non-refundable. MPT reserves the right to deny a return if the product shows signs of installation or damage.
  • Vehicle programmers/tuners that have loaded a tune onto a vehicle cannot be returned.

Refund Amounts:

  • Returns postmarked within 15 days of receipt will be refunded the purchase price minus the shipping cost MPT paid.
  • Returns postmarked between 16 and 30 days will be refunded the purchase price minus a 25% restocking fee and the shipping cost.
  • After 30 days, all sales are final.

Non-Refundable Items:

  • Shipping charges and any package insurance are non-refundable. If free shipping was applied to your purchase, the actual shipping cost will be subtracted from your refund.
  • HP Tuners Credits are non-refundable once they’ve been assigned to a device’s serial number, which occurs either during the purchase or upon completing the tune form.
  • Digital products like SCT Tuner Unlocks, HP Tuners Credits, or MPT Tunes cannot be refunded.
  • Decals/Stickers are non-refundable once received by the customer.
Year Make Model Submodel
2015-2023 Ford Mustang EcoBoost
2022-2023 Ford Mustang EcoBoost Premium
2015-2023 Ford Mustang GT
2022-2023 Ford Mustang GT Premium
2022-2023 Ford Mustang Mach 1
2022 Ford Mustang Shelby GT500
2015-2017 Ford Mustang V6