ROUSH PERFORMANCE 421405-MO Lower Rear Bumper Splitter Valance

( Brand: Roush Performance ), ( Part Type: Bumper Splitter ), ( Manufacturer Part Number: 421405-MO ), ( California Prop 65 Warning: Warning )

Review ROUSH PERFORMANCE Rear Lower Bumper Side Splitter Valance fits MUSTANG 2013–2014

The Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is an excellent addition to any Mustang enthusiast's vehicle, adding both function and style. This aerodynamic component is meticulously designed to fit the 2013 and 2014 Mustang models and is manufactured using high-quality materials for durability and longevity.

The splitter valance is a lower front bumper extension that sits just above the rear bumper of your Mustang. Its primary function is to improve downforce and airflow management under the vehicle, enhancing overall performance and stability, especially during high-speed driving. The splitter design creates a pressure difference beneath the vehicle, which pushes the car down onto the road, increasing traction and grip.

The Roush Performance 421405-MO Rear Lower Bumper Splitter Valance boasts an aggressive and sleek appearance, elevating your Mustang's exterior look. The black finish, which matches the OEM bumper color, blends seamlessly with the vehicle while highlighting the splitter's intricate design. The splitter's geometric shape and sharp lines add a touch of sophistication and sportiness to your Mustang's rear end.

Installation of the Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is straightforward and can be accomplished using the included hardware and instructions. The valance attaches to the existing bumper using factory mounting points, ensuring a secure and stable fit.

In summary, the Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is a must-have accessory for any Mustang owner seeking improved performance and a more aggressive appearance. This high-quality, aerodynamic component enhances your vehicle's downforce, airflow management, and overall styling. With its easy installation process, you can enjoy the benefits of this performance upgrade in no time.

The Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is an aerodynamic add-on designed to improve the performance and appearance of your Mustang. Here are some pros and cons to help you make an informed decision before making a purchase:

1. Enhances the appearance of your Mustang: The splitter valance adds an aggressive and sporty look to your vehicle.

2. Improves downforce: By creating additional underbody aerodynamic downforce, the splitter valance helps to keep your Mustang planted to the ground, improving handling and stability at high speeds.

3. Durable construction: The splitter valance is made from high-quality materials, including a durable powder-coated finish, ensuring longevity and resistance to the elements.

1. Installation complexity: Installing the splitter valance may require some level of automotive experience or professional installation, which could add to the overall cost.

2. Additional cost: The Roush Performance splitter valance is an aftermarket accessory, which means it will come with an additional cost compared to the stock bumper.

3. Potential clearance issues: Depending on the terrain and driving conditions, the splitter valance could potentially come in contact with the ground, which could lead to damage or wear over time.

The Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is an excellent addition for those looking to enhance the performance and appearance of their Mustang. While there are some installation complexities and additional costs associated with the part, the benefits of improved downforce, durability, and enhanced aesthetics make it a worthwhile investment for many Mustang enthusiasts.

If you're looking to improve the performance and appearance of your Mustang, the Roush Performance 421405-MO 2013-2014 Mustang Rear Lower Bumper Splitter Valance is an excellent choice. However, it's important to carefully consider the installation process and potential clearance issues before making a purchase. If you're not confident in your ability to install the part yourself, it may be worthwhile to consider professional installation to ensure proper fitting and function.

part # 421405 price

• $149.99

specifications performaproto:

• for models: Mustang
• for years: 2013-2014
• brand: Roush Performance
• part type: Bumper Splitter
• manufacturer part number: 421405-MO
• california prop 65 warning: Warning

seller performaproto:

• rating: 99.3%
• # reviews: 104246

payments performaproto:

• other
• credit card: Mastercard
• wallet: Paypal

offer performaproto:

• sold: 0
• quantity: 4
• best offers: True
• options: Ship-to-home
• started: August 29, 2025
• availability: In Stock

returns performaproto:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general performaproto:

• Permance Racing Parts > Auto Permance Parts > Body Kits
• condition: New

shipping performaproto:

• cost: $0.00
• transit: 6-12 Days
• type: Fixed
• carrier: USPS
• service: USPS Priority Mail
• class: Expedited

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