5 Star Custom Tunes w/ SCT X4 Device (1999 - 2003 Ford Super Duty 7.3L Power Stroke)
Bring your Ford Super Duty 7.3L Power Stroke to life with 5 Star Custom Tunes and the SCT X4 handheld tuner. Factory calibrations are built for the average driver, leaving horsepower, torque, and drivability untapped. With 5 Stars proven calibrations, your truck will feel more powerful, more responsive, and more capablewhether towing, daily driving, or working hard.
Why Choose 5 Star Tuning?
We are the industry leader in Ford and GM truck, SUV, car, and motorhome tuning. Our engineers build tunes specifically for your Super Dutynot a generic one-size-fits-all solution. Whether you need extra torque for towing, stronger throttle response, better efficiency, or custom adjustments for future mods, we deliver. Reliability is never compromised.
Dyno & Street Proven Results
Each tune is dyno-developed and road-tested on our own vehicles with over 1 million test miles. We validate performance in real-world towing, hauling, and daily driving conditions to ensure your truck performs at its best in every situation.
Free Tunes for Life
With our Tunes for Life program, your investment grows with your truck. Install a new intake, exhaust, or other performance mod? Well update your tune at no cost for as long as you own the vehicle. Call 1-855-827-7223 for details on qualifying upgrades.
What Youll Gain
- Improved towing performance and torque
- Sharper throttle response and cleaner shift points
- Better fuel efficiency and drivability
- Removal of factory speed limiter
- Smoother, stronger overall performance
How We Unlock More Power
Our calibrations adjust fuel tables, ignition timing, drive-by-wire response, torque converter lockup, and shift pressures. This brings out the hidden potential of your 7.3L Power Stroke diesel.
What the SCT X4 Device Does
- Stores up to 10 custom 5 Star tunes
- Reads/clears DTCs (diagnostic trouble codes)
- Monitors live engine parameters (RPM, speed, coolant temp, more)
- Allows datalogging for advanced fine-tuning
- Keeps a copy of your factory tune so you can return to stock anytime
Easy DIY Installation
No shop requiredjust plug the SCT X4 into your OBD-II port. Installation takes 510 minutes and requires no tools. Follow the on-screen prompts and enjoy instant performance.
Custom 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 email your custom tunes via Google Drive.
- Load the files onto your SCT X4 and flash them into your truck.
Compatibility Notes
- Works with Windows OS only. Non-Windows users should consider the Bully Dog BDX (Wi-Fi enabled).
- By purchasing, you agree to ensure compliance with federal, state, and local emissions laws. 5 Star Tuning is not responsible for violations.
Fitment:
- 1999 Ford Super Duty 7.3L Power Stroke
- 2000 Ford Super Duty 7.3L Power Stroke
- 2001 Ford Super Duty 7.3L Power Stroke
- 2002 Ford Super Duty 7.3L Power Stroke
- 2003 Ford Super Duty 7.3L Power Stroke
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
