5 Star Custom Tunes with RTD Device (2018 - 2023 Mustang 2.3L EcoBoost)
Unlock the full potential of your 2018-2023 Mustang EcoBoost 2.3L with a 5 Star Custom Tune and HP Tuners RTD Device. From the factory, your Mustangs ECU is designed for the masses, leaving horsepower and torque untapped. With a custom recalibration, youll gain sharper throttle response, optimized shift points, improved efficiency, and a driving experience that feels completely transformed.
Why Choose 5 Star Tuning?
As the industry leader in Ford and GM tuning, 5 Star provides custom-tailored calibrations designed for your exact vehicle and goals. Whether youre seeking more horsepower, added torque, or drivability improvements for current and future modifications, these tunes are engineered for both performance and reliability.
Dyno & Street Proven Performance
Every tune is dyno-developed, refined, and real-world tested. With over one million test miles logged on their own vehicles, 5 Star ensures unmatched reliability and proven results on the street, track, or towing.
Free Tunes for Life
With the Tunes for Life program, recalibrations are free for as long as you own your Mustang. Add new modifications and keep your EcoBoost running at peak performance without additional cost. For program details, call 1-855-827-7223.
Performance Benefits
- Increased horsepower and torque
- Faster throttle response
- Removal of the factory speed limiter
- Smoother, more precise transmission shifts
- Improved efficiency and drivability
How the Tunes Deliver More Power
5 Stars expert calibrations adjust key systems including:
- Fuel tables and air/fuel ratios
- Drive-by-wire throttle mapping
- Ignition timing
- Torque converter strategies
- Shift points and shift pressures
RTD Device Features
The HP Tuners RTD Device is more than a flash programmerits a powerful tuning tool:
- Store and load up to 10 custom tunes
- Monitor real-time engine parameters (RPM, speed, coolant temp, and more)
- Datalog for additional fine-tuning with future mods
- Keep a backup of your factory tune and return to stock at any time
RTD Installation Overview
The installation process is straightforward and requires no tools:
- Install the RTD Flasher software on your Windows laptop.
- Connect the RTD/RTD+ device to your Mustangs OBD-II port and to your computer via USB.
- Read and save your stock file, then email it to 5 Star Tuning.
- Download your custom tunes once received.
- Use the RTD Flasher to license your vehicle and flash your new tune.
Note: A strong Wi-Fi connection and a Windows laptop are required to use the RTD Flasher.
Important Notes
- By purchasing, you assume responsibility for ensuring compliance with all emissions and safety regulations.
- 5 Star Tuning does not disable or defeat emissions control equipment. Functions such as O2 sensors, DPF, EGR, or SCR remain active.
- This product is not legal for sale or use in California. Orders from California will be canceled.
Fitment:
- 2018 Ford Mustang 2.3L EcoBoost
- 2019 Ford Mustang 2.3L EcoBoost
- 2020 Ford Mustang 2.3L EcoBoost
- 2021 Ford Mustang 2.3L EcoBoost
- 2022 Ford Mustang 2.3L EcoBoost
- 2023 Ford Mustang 2.3L EcoBoost
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
