5 Star Custom Tunes w/ SCT X4 Device (1997 - 2005 Ford E-Series Class C Motorhome 4.2L)
Unlock the hidden performance in your Ford E-Series Class C Motorhome 4.2L with 5 Star Custom Tunes and the SCT X4 Device. From the factory, your PCM is set up for the average driver, not the enthusiast. That leaves horsepower, torque, and drivability untapped. Our calibrations reprogram your vehicles PCM for increased power, sharper throttle response, cleaner shift points, and improved fuel efficiency, making every mile more enjoyable.
Why 5 Star Tuning?
As the industry leader in Ford and GM performance tuning, we create custom-tailored tunes designed for your specific vehicle and needs. Whether you want more power, stronger torque for towing, or smoother drivability with your upgrades, our calibrations deliver resultsall without sacrificing reliability.
Dyno & Street Proven
Every tune is dyno-tested, refined, and validated with more than a million test miles on our own vehicles. From highway driving to heavy towing, our calibrations are built to perform where it matters most: in real-world conditions.
Free Tunes for Life
Through our Tunes for Life program, youll never pay twice for recalibrations. If you add new modifications, well update your tunes at no cost for as long as you own your motorhome. To learn more, call us at 1-855-827-7223.
Performance You Can Feel
Factory programming often limits your motorhome with sluggish throttle, sloppy shifts, and restrictive speed limiters. With a 5 Star Custom Tune, youll enjoy more horsepower, torque, throttle response, towing power, and efficiency that youll notice immediately on the open road.
How We Unlock Performance
Our engineers adjust fuel tables, drive-by-wire response, ignition timing, torque converter settings, shift strategies, and shift pressures to bring out the full potential of your 4.2L engine.
What the SCT X4 Device Can Do
- Holds up to 10 custom tunes from 5 Star Tuning
- Monitors engine parameters such as RPM, speed, coolant temps, and more
- Offers datalogging for advanced performance adjustments
- Backs up your factory tune and allows you to return to stock anytime
Quick & Simple Installation
The SCT X4 installs in 510 minutes through your OBD-II port with no tools required. Just plug it in and follow the on-screen instructionsanyone can do it.
Step-by-Step Tuning Process
- Order your SCT tuner online or by phone and provide your vehicle details.
- Use your device to pull your ECU strategy code and email it to 5 Star Tuning.
- Well create your custom tunes and send them via Google Drive.
- Load the tunes to your SCT device, plug into your OBD-II port, and flash your motorhome.
Compatibility Notes
- SCT software works with Windows OS only. For non-Windows users, we recommend the Bully Dog BDX with Wi-Fi support.
- By ordering, you accept responsibility for compliance with all federal, state, and local emissions/safety laws. 5 Star Tuning is not responsible for violations resulting from use of this product.
Fitment:
- 1997 Ford E-Series Class C Motorhome 4.2L
- 1998 Ford E-Series Class C Motorhome 4.2L
- 1999 Ford E-Series Class C Motorhome 4.2L
- 2000 Ford E-Series Class C Motorhome 4.2L
- 2001 Ford E-Series Class C Motorhome 4.2L
- 2002 Ford E-Series Class C Motorhome 4.2L
- 2003 Ford E-Series Class C Motorhome 4.2L
- 2004 Ford E-Series Class C Motorhome 4.2L
- 2005 Ford E-Series Class C Motorhome 4.2L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

