5 Star Custom Tunes w/ SCT X4 Device (1997 - 2004 Ford Expedition 4.6L / 5.4L)
Unlock the hidden power of your Ford Expedition 4.6L or 5.4L with 5 Star Custom Tunes and the SCT X4 Device. From the factory, your PCM is programmed for the average driver, leaving performance untapped. Our calibrations reprogram your vehicles computer for increased horsepower, improved torque, sharper throttle response, cleaner shift points, and better efficiency. Your Expedition will feel more capable whether youre towing, road-tripping, or daily driving.
Why 5 Star Tuning?
We are the industry leader in Ford and GM tuning, offering custom-tailored calibrations rather than generic one-size-fits-all files. Every tune is designed specifically for your needswhether that means more horsepower, stronger towing performance, or smoother drivability with aftermarket upgrades. All while maintaining the reliability your Expedition depends on.
Dyno & Street Proven
Our calibrations are dyno-tested, refined, and road-proven across more than a million miles on our own vehicles. From highway driving to heavy loads, our tunes deliver dependable performance in real-world conditions.
Free Tunes for Life
With our Tunes for Life program, youll never pay again for recalibrations. When you add new modifications, well update your tunes for free as long as you own your Expedition. This ensures your SUV always runs at peak power and efficiency. For more details, call us at 1-855-827-7223.
Performance Gains Youll Notice
Eliminate sluggish throttle, lazy shifts, and factory speed limiters. A 5 Star Custom Tune gives your Expedition more horsepower, torque, throttle response, efficiency, and towing power to enhance every mile you drive.
How We Unlock Performance
Our engineers optimize fuel tables, drive-by-wire response, ignition timing, torque converter control, shift strategies, and shift pressures to bring out the best in your 4.6L or 5.4L Expedition.
What the SCT X4 Device Can Do
- Holds up to 10 custom tunes from 5 Star Tuning
- Monitors vital engine parameters (RPM, speed, coolant temps, and more)
- Datalogging capability for future modifications and refinements
- Stores your factory tune and allows easy return to stock
Easy Installation
Installation takes just 510 minutes and requires no tools. Simply plug the SCT X4 into your OBD-II port and follow the on-screen prompts. Anyone can do itno shop required.
How the Process Works
- Order your SCT tuner online or by phone and provide your vehicle information.
- Use your device to pull your ECU strategy code and email it to 5 Star Tuning.
- Our team will build your custom tunes and send them via Google Drive.
- Load the tunes onto your SCT device, plug it into your OBD-II port, and flash your Expedition.
Compatibility Notes
- SCT software works with Windows OS only. For non-Windows systems, we recommend the Bully Dog BDX with Wi-Fi support.
- By ordering, you accept responsibility for ensuring compliance with federal, state, and local emissions/safety laws. 5 Star Tuning is not liable for violations resulting from use of this product.
Fitment:
- 1997 Ford Expedition 4.6L / 5.4L
- 1998 Ford Expedition 4.6L / 5.4L
- 1999 Ford Expedition 4.6L / 5.4L
- 2000 Ford Expedition 4.6L / 5.4L
- 2001 Ford Expedition 4.6L / 5.4L
- 2002 Ford Expedition 4.6L / 5.4L
- 2003 Ford Expedition 4.6L / 5.4L
- 2004 Ford Expedition 4.6L / 5.4L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

