DYNO & STREET PROVEN
INCREASED HP & TORQUE
Optimized Fuel Efficiency
BETTER THROTTLE RESPONSE
Fear No Mountain RV Towing Solution with Preloaded 5 Star Custom Tunes
$599.95
Promotional Group Buy for IRV2 Members!
TUNER & TUNES PROCESS
Order & Receive Your Tuner
Place an order for your tuner with custom tunes from 5 Star Tuning today. Once your order is confirmed, we’ll promptly send you a blank tuner device that’s ready to be personalized just for your vehicle.
ECU Strategy & Calibration Form
Connect your tuner to your vehicle to pull the ECU strategy code and ECU SWPN (if needed). Then, complete our simple calibration form with your vehicle details, and we’ll create the perfect custom tune.
Download & Install Your Custom Tune
Once we’ve created your custom tune, we’ll email you the file. Simply download it to your PC, use the device updater software to load the tune into your tuner, and then install it into your vehicle for an optimized performance experience. If you need help, visit our support page. Now you’re ready to hit the road with a fully optimized tune!
5 STAR TUNING
Let our valuable customers do the talking..Frequently asked questions
Why Tune My Vehicle?
Your vehicle’s factory settings are designed for the average driver, not the performance enthusiast. This means that while your car may run smoothly, it’s not tapping into its full potential. Valuable horsepower and torque are left untapped, and the overall driving experience may feel underwhelming. Our expert tuners unlock your vehicle’s hidden power by recalibrating the PCM, optimizing horsepower and torque, enhancing throttle response, refining shift points, improving efficiency, and ultimately delivering a superior driving experience.
Why 5 Star Tuning?
As the leader in Ford and GM truck, car, SUV, and motorhome tuning, we offer the most advanced, customized motorhome tunes available. Our user experiences speak for themselves. We’re are MotorHome Magazine 2012, 2013, 2014, 2015, 2016, 2017 & 2018 Reader’s Choice Award Winner!
Dyno & Street Proven Tunes!
Our custom tunes are developed on the dyno, carefully refined, and rigorously tested. From street testing to tow testing, we’ve driven our tunes across the country in our personal vehicles, accumulating over a million miles of real-world data. Our commitment to quality is evident in how we test and refine our tunes, ensuring they’re the highest quality on the market.
Free Tunes for Life!
If you’ve added a new modification to your vehicle and want to ensure maximum performance, our Tunes for Life membership has you covered. As a member, any new modifications you make are eligible for free tuning for the life of your vehicle, ensuring your vehicle runs at its best with our dyno and street-tested tunes. To learn more about what qualifies for free tune upgrades, visit our Free Tunes for Life page.
Want More Performance?
A 5 Star Tuning custom tune can transform your vehicle’s performance. From improved drivability, horsepower, torque, and throttle response, to better fuel efficiency and towing capacity, our tunes give you a noticeable performance boost. Say goodbye to factory speed limits, sluggish throttle, and poor shifts. Experience the full potential of your vehicle.
How Do We Achieve More Performance?
Our tunes maximize your vehicle’s performance by fine-tuning key parameters such as fuel tables, drive-by-wire settings, timing, torque converter operation, shift strategies, and shift pressures. Visit our Custom Tuning Info section for specific details on how our tunes can benefit your vehicle.

See The 5 Star Tune In Action

Motorhome Magazine’s “5 Star Tuning Talk”




Below is a step-by-step overview of our custom tuning process:
- Plug in the Device
Plug your device into the vehicle’s OBDII port. The device will automatically power on.- If the device does not power on, check for a blown fuse. It should be the same fuse as the cigarette lighter and 12V accessory port.
- Select “Program Vehicle”
Press the center button on your X4 device to select “Program Vehicle.” Follow the on-screen prompts for key cycles (turning the key on and off). - Tuning Your Vehicle
- The first time you tune your vehicle, it will take some time as the device saves your stock file in addition to tuning your application.
- Under preloaded tunes, select “5 Star 87 RV” to load onto your motorhome.
- Handling “Unsupported Vehicle” Message
If the device shows “unsupported vehicle,” follow the steps below to obtain your ECU strategy code and/or ECU SWPN.- After selecting your tune, you’ll have user-adjustable options. You can either continue with this step or skip by selecting “Approve.” Custom programming will then begin.
- Complete the Process
Once tuning is complete, the device will display “Download Complete” and prompt you to turn the key off. At this point, you can disconnect your device.
For further questions or support, you can reach 5 Star Tuning at:
- Phone: 843-536-1244
- Email: [email protected]
For more instructions, visit our Support Page.
Important Legal Notice:
- Customers are responsible for ensuring compliance with all laws and regulations regarding vehicle modifications.
- 5 Star Tuning does not offer calibrations that disable emission controls.
- This product is not available for sale or use in California.
| Weight | 2 lbs |
|---|---|
| Dimensions | 7 × 7 × 4 in |
| brand |
How Long Does Installation Take? The installation will take approximately 5-10 minutes for SCT, around 30 for HP.
Do I Need A Shop To Install? The installation process of the tuner is simple and can be performed by anyone. No tools are required for the installation.
What If I Have Other Technical Questions? We can always be reached at (843) 536-1244 or via email at [email protected] for questions on concerns on the tuning process. We also feature a support page with information and videos pertaining to loading your custom tunes, updating your device, installation, etc at https://5startuning.com/support/.
Note: SCT’s software is only compatible with Microsoft’s Windows operating systems. For OS other than Windows, we recommend the SCT/Bully Dog/5 Star Tuning The Bully Dog BDX will support custom tuning via Wi-Fi. *** FOR HP RTD TUNERS: Wi-Fi is required to read and write to your vehicle. Ensure you have a strong Wi-Fi connection and your Windows laptop (required) battery is charged or that your laptop is currently charging.




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