5 Star Custom Tunes w/ SCT X4 Device (2004 - 2005 Explorer 4.0L / 4.6L)
Transform the way your 20042005 Ford Explorer 4.0L or 4.6L performs with 5 Star Custom Tunes and the SCT X4 Device. From the factory, your Explorers PCM is programmed for average drivingnot for enthusiasts. Our custom calibrations unlock hidden horsepower, torque, throttle response, and towing power, giving you a sharper, more efficient, and more enjoyable drive.
Why 5 Star Tuning?
We are the industry leader in Ford custom tuning, trusted for precision, reliability, and results. Unlike one-size-fits-all tunes, every calibration is tailored to your Explorer and your driving goalswhether thats daily drivability, towing, or maximizing aftermarket modifications. Our tunes improve performance without compromising long-term reliability.
Proven Dyno & Street Testing
Every tune is dyno-developed, refined, and road-tested. Weve validated performance improvements through extensive testingincluding towing and long-distance drivinglogging over one million miles on our own vehicles. The result: real-world gains you can trust.
Free Tunes for Life
As part of our Tunes for Life program, youll receive free recalibrations for the life of your Explorer whenever you add new modifications. This ensures your tune always matches your build, giving you peak performance at no extra cost during your ownership.
Performance Benefits
- Increased horsepower and torque across the powerband
- Improved throttle response and acceleration
- Smoother, more refined shift strategies
- Better towing capability and efficiency
- Removal of restrictive factory speed limiter
How We Unlock Performance
Our engineers adjust critical PCM parameters including fuel tables, ignition timing, drive-by-wire mapping, torque converter lockup, and transmission shift pressures. The result is stronger power delivery, improved drivability, and optimal efficiency for your Explorer.
SCT X4 Device Features
- Compact handheld tuner with high-resolution color screen
- Stores up to 10 custom 5 Star tunes
- Reads & clears DTCs (diagnostic trouble codes)
- Monitors live engine data like RPM, coolant temp, and speed
- Advanced datalogging support for modifications
- Easily returns your Explorer to stock settings anytime
Quick & Easy Installation
Installation is simple and requires no tools. In just 510 minutes, plug the SCT X4 into your Explorers OBD-II port, select your tune, and follow the on-screen prompts.
Custom Tuning Process
- Place your order online and provide your Explorers details.
- Use the SCT X4 to pull your ECU strategy code, then email it to 5 Star Tuning.
- Well build your custom tunes and send them via Google Drive.
- Load the tunes onto your SCT X4, connect to your Explorer, and program your PCM.
Important Notes
- SCT software supports Microsoft Windows only. For Mac or other OS, use SCT BDX with Wi-Fi.
- Buyer is responsible for compliance with all federal, state, and local emissions regulations.
Fitment:
- 2004 Ford Explorer 4.0L
- 2004 Ford Explorer 4.6L
- 2005 Ford Explorer 4.0L
- 2005 Ford Explorer 4.6L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
