5 Star Custom Tunes w/ SCT X4 Device (1999 - 2004 Ford Super Duty 5.4L)
Unlock the full potential of your Ford Super Duty 5.4L with 5 Star Custom Tunes and the SCT X4 handheld tuner. From the factory, your trucks PCM is designed for the average driverleaving horsepower, torque, and drivability hidden. 5 Stars custom calibrations deliver more power, better towing ability, sharper throttle response, and smoother shifts, transforming your truck into the powerhouse it was meant to be.
Why 5 Star Tuning?
Unlike one-size-fits-all tuners, we tailor every calibration to your specific needs. Whether you want increased torque for towing, improved efficiency, or maximum horsepower, our tunes are designed for your exact application. Reliability is always protectedno shortcuts, no compromises.
Dyno & Street Proven
Our engineers dont just write fileswe test them on our own vehicles. Every tune is dyno-developed, refined, road-tested, tow-tested, and validated with over 1 million miles of driving to ensure safe, consistent performance in real-world conditions.
Free Tunes for Life
Your investment grows with your truck. Add a new intake, exhaust, or other performance upgrade? Well revise your tunes for free for as long as you own the vehicle. For full details, call 1-855-827-7223.
Performance Benefits
- Increased towing power and torque
- Sharper throttle response and cleaner shift points
- Better fuel efficiency and overall drivability
- Removal of factory speed limiter
- More confident and consistent performance under load
How We Get More Out of Your 5.4L
We optimize fuel tables, ignition timing, drive-by-wire response, torque converter lockup, and transmission shift pressures to bring out hidden performance in your Ford Super Duty 5.4L.
SCT X4 Device Features
- Holds up to 10 custom 5 Star tunes
- Reads & clears DTCs (trouble codes)
- Monitors live engine data (RPM, coolant temp, speed, etc.)
- Supports datalogging for advanced tuning
- Stores a copy of your factory tune for easy return to stock
Simple Installation
No shop or special tools required. Plug the SCT X4 into your OBD-II port and follow on-screen prompts. Installation takes just 510 minutes.
The Tuning Process
- Order your SCT X4 tuner and provide vehicle details at checkout.
- Use the device to read your ECU strategy code and email it to 5 Star Tuning.
- Well create your custom tunes and send them via Google Drive.
- Load the files to your SCT X4 and flash your truck in minutes.
Important Notes
- Compatible with Windows OS only. For non-Windows systems, we recommend the Bully Dog BDX (Wi-Fi enabled).
- By ordering, you agree to comply with all federal, state, and local emissions laws. 5 Star Tuning is not liable for misuse or violations.
Fitment:
- 1999 Ford Super Duty 5.4L
- 2000 Ford Super Duty 5.4L
- 2001 Ford Super Duty 5.4L
- 2002 Ford Super Duty 5.4L
- 2003 Ford Super Duty 5.4L
- 2004 Ford Super Duty 5.4L
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