5 Star Custom Tunes w/ RTD Device (2005 - 2012 E-Series Class C Motorhome 5.4L)
Give your Ford E-Series Class C Motorhome (5.4L) the power and efficiency it deserves with 5 Star Custom Tunes and the HP Tuners RTD device. From the factory, your PCM is calibrated for average drivingnot the demands of a fully loaded motorhome. With 5 Star tuning, youll unleash hidden horsepower and torque, enjoy stronger throttle response, smoother shifts, and improved drivability whether youre cruising highways or towing.
Why Choose 5 Star Tuning?
5 Star is a recognized leader in tuning Ford and GM cars, trucks, SUVs, and motorhomes. Unlike one-size-fits-all tunes, our calibrations are tailored specifically to your application. Whether you need more torque for climbing hills, better throttle response for daily driving, or improved efficiency on long trips, we design your tune to meet your exact needswithout sacrificing reliability.
Dyno & Road Tested
Our engineers test and refine tunes on the dyno and the roadlogging over a million miles on our own vehicles. This ensures every 5 Star tune delivers consistent, proven performance you can count on when hauling or traveling across the country.
Free Tunes for Life
With the Tunes for Life program, updates are free as long as you own your vehicle. Add performance mods later? Well recalibrate at no charge to keep your motorhome running at peak performance.
Performance Benefits
- More horsepower and torque to handle heavy loads
- Improved throttle response for quicker acceleration
- Smoother, more accurate shift points
- Better towing capability for long trips
- Enhanced fuel efficiency while cruising
- Removal of factory speed limiter
How We Maximize Power
Our tunes adjust critical parameters like fuel mapping, ignition timing, throttle control, torque converter strategies, and shift pressures to extract the best performance from your motorhome.
RTD Device Features
The HP Tuners RTD is more than just a flash tool. It offers:
- Storage for up to 10 custom 5 Star tunes
- Live engine monitoring (RPM, coolant temp, speed, and more)
- Datalogging for current and future upgrades
- Factory tune backup for easy return to stock
Easy Installation
No tools or shop visit requiredjust a Windows laptop and Wi-Fi. With step-by-step RTD software guidance, installing your custom tune is simple and straightforward.
Support & Assistance
Questions? Our team is here to help. Call 1-855-827-7223 or email sales@beefcakeracing.com for assistance with the tuning process.
Important Notes
- Not legal for sale or use in California.
- Tunes will not disable emissions equipment (O2 sensors, EGR, SCR, etc.).
- Customer is responsible for ensuring compliance with all federal, state, and local regulations.
Fitment:
- 2005 Ford E-Series Class C Motorhome 5.4L
- 2006 Ford E-Series Class C Motorhome 5.4L
- 2007 Ford E-Series Class C Motorhome 5.4L
- 2008 Ford E-Series Class C Motorhome 5.4L
- 2009 Ford E-Series Class C Motorhome 5.4L
- 2010 Ford E-Series Class C Motorhome 5.4L
- 2011 Ford E-Series Class C Motorhome 5.4L
- 2012 Ford E-Series Class C Motorhome 5.4L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

