fits year: 2015–2017.

( Brand: Roush ), ( Manufacturer Part Number: 421990 )
The 421990 Roush Performance Stage 1 Level 15-17 Ecoboost is an exceptional upgrade for your Ford vehicle, designed to enhance performance and deliver a thrilling driving experience. This kit is specifically engineered for Ford Ecoboost engines from 2015 to 2017, and it comes from the renowned Roush Performance, a trusted name in performance enhancing upgrades for Ford vehicles.
The Stage 1 Level 15-17 Ecoboost kit includes a high-flow air intake system and a Roush Performance high-flow catalytic converter. The high-flow air intake system allows for increased airflow, which results in more power and improved throttle response. The Roush Performance high-flow catalytic converter, on the other hand, ensures that your vehicle continues to meet emissions regulations while still delivering optimal performance.
This kit also includes a Roush Performance calibration, which is specifically tailored to work with the components included in the kit. The calibration optimizes the engine's performance, ensuring that you get the most out of your upgrade. The Stage 1 Level 15-17 Ecoboost kit also includes a Roush Performance cold air intake, which further enhances engine performance by reducing intake air temperature and increasing airflow.
Installation of the 421990 Roush Performance Stage 1 Level 15-17 Ecoboost kit is relatively straightforward, and it can be done by a competent DIYer or a professional mechanic. The kit includes detailed instructions to make the installation process as smooth as possible.
In conclusion, the 421990 Roush Performance Stage 1 Level 15-17 Ecoboost kit is an excellent choice for anyone looking to enhance the performance of their Ford Ecoboost engine. With its high-flow air intake system, Roush Performance high-flow catalytic converter, and Roush Performance calibration, this kit delivers increased power, improved throttle response, and a more engaging driving experience.
Pros of buying a Roush Performance Stage 1 for 4.0L Ecoboost:1. Power and Performance: The Roush Performance Stage 1 kit provides a significant increase in power, up to 375 horsepower and 380 lb-ft of torque. This can greatly enhance your driving experience, especially for those who enjoy a more spirited drive.
2. Handling and Suspension: The kit includes upgraded suspension components that can improve handling and stability. This can make your vehicle feel more responsive and agile on the road.
3. Aesthetics: Roush is known for its distinctive styling, and this kit includes a variety of cosmetic upgrades, such as a unique front grille, badges, and exhaust tips. For some, these visual enhancements can make their vehicle stand out.
4. Warranty: Roush offers a limited warranty for its performance upgrades, which can give you peace of mind in case of any issues.
Cons of buying a Roush Performance Stage 1 for 4.0L Ecoboost:1. Cost: The kit is not inexpensive, and the price can vary depending on where you buy it and what options you choose. You should factor in the cost of installation as well.
2. Fuel Economy: While the power increase is a pro for some, it's a con for others, especially those who prioritize fuel efficiency. The performance upgrade can result in reduced fuel economy.
3. Resale Value: Some buyers may be turned off by the modifications, which could potentially impact the vehicle's resale value.
4. Warranty Limitations: While Roush offers a limited warranty, it's important to note that this may not cover all issues that arise from the performance upgrade.
Conclusion:The Roush Performance Stage 1 kit for the 4.0L Ecoboost offers improved power, handling, and aesthetics, but it also comes with higher costs, potential impact on fuel economy, and potential impact on resale value. If you enjoy driving with more power and are willing to pay for it, this kit could be a good fit for you. However, if you prioritize fuel efficiency or resale value, you may want to consider other options.
Recommendation:If you're interested in the Roush Performance Stage 1 kit, I recommend doing thorough research to understand the cost and potential impact on your vehicle. You should also consider whether the benefits outweigh the drawbacks for your specific needs and preferences. It's also a good idea to find a reputable installer to ensure the upgrade is done correctly.
Roush calibrations have been optimized for 91 octane fuel, they are compatible with lower ratings reduced power and performance output.
All necessary parts and instructions are included. Washable, this dry air filter does not require oiling, saving you time and money.
The improved boost and throttle mapping of included Roush tune will also give your turbocharged mustang a much sportier feel.
Cold air intake. Technical note.
J2534 interface tool required. Roush performance pac - level ecoboost good condition, open box item, sold as pictured 1 increases of over 51 Rep and 45 ft lb ROTC improves boost throttle response cold air intake kit included reusable high flow dry filter calibration optimized for 91 octane fuel flashed via a j2534 interface tool dealer service charge may apply fits manual automatic mustangs Roush.
Aftermarket pros. Straight forward installation.
If the does not match pictures there is most likely a mistake. The Roush performance cold air intake kit is designed to install easily with just basic hand tools.
The included high-flow dry air filter provides excellent filtration of harmful power robbing particulates. 3l inline 4-cylinder engine.
This Roush level 1 performance pac is specifically designed for use on manual and automatic ecoboost mustangs equipped with the turbocharged The filter is composed of two layers wire mesh for durability and proven to retain its shape even under high airflow.