V8TUNE - UltraPower 7.3L V8 Custom Tune (E-mail Tune Only)

V8TUNE  -  UltraPower 7.3L V8 Custom Tune (E-mail Tune Only)


Order Shipment Notice: 

Most orders are shipped within 24 hours from the order date. Orders placed on the weekend or after cutoff on Friday, and orders placed on select holidays are processed on the next business day. Please see our shipping terms for more information.

Important: This is for an e-mail tune only. You MUST already own an SCT X4 device that is unmarried from any previous vehicles. If you do not, you will need to order the UPFORD tuner with custom tune or have SCT unlock the device: https://sctflash.com/accessories/unlock/


  • 2020+ Ford 7.3L V8 "Godzilla"
  • Ford F53 Class A RV
  • Ford E-Series SuperDuty: E350, E450
  • Ford F-Series SuperDuty: F250, F350, F450, F550


The Ford Ultra RV Tune is hands down the most cost effective and noticeable performance and fuel mileage upgrade you can make to your Ford V8 powered RV or truck. From the factory, an RV's engine power is de-tuned and the constant transmission shifting is annoying and unnecessary. One of the most noticeable differences from stock will be the elimination of instant downshifts that occur at even the slightest of hills. Your RV or truck will now be able to maintain higher gears without the unnecessary screaming of the engine! This alone makes a great deal of difference in driving comfort and improves the fuel economy. Throttle response is greatly improved and merging onto the freeway will be much less stressful. We are not able to guarantee fuel mileage increases but the vast majority of our customers report a gain, most between ½ to 1 MPG improvement!

While most tuners rely on “canned” tune files (not custom), all our Custom Tunes are tailored specifically to YOUR vehicle. We require the VIN so that we can pull up your vehicle’s specific parameters and will make a tune that is truly customized to your vehicle.

Ultra RV Tune Power Improvements:

  • 2020+ 7.3L "Godzilla" V8 Gains of 47 HP and 54 lb-ft Torque

Ultra RV Tune Benefits:

  • Fuel mileage improvement of up to 1 MPG
  • Drastically reduces constant downshifts on hills
  • Maintains speed and higher gears when climbing hills
  • Improved throttle response coupled with more power makes driving more enjoyable

SCT Updater Software Download

I have 7.3 v8 2021 ford does this tune allow you still run 87 octane gas ( Gordon Holmes, 04/30/2023 )
Yes, our tunes are designed to run standard 87 octane fuel . ( Support )
Customer of our has converter theft. We have been asked if it can be turned off. I do hptuner for V10 and such. Im curious base of experience if its possible to get custom tune as customer will straight pipe and want no check engine light, and also smooth response for flow difference.

We would like to know if this vehicle is a candidate if we do purchase as SCT X4
( kevin gosselin, 04/12/2023 )
I'm not sure about HPTuner's capabilities on tuning the V10, but SCT removed the ability to turn off emissions controls so we are not able to assist in this matter. ( Support )

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 The state of California requires that this warning be posted for people purchasing products that reside in California.

WARNING: Products may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov

Shipping Insurance Notice

NOTICE: For orders outside of United States

If you are placing an order to ship outside the United States, Shipping Insurance will be required and added automatically at checkout.


  • Views: 1303
  • Brand: UltraPower
  • Product Code: V8TUNE
  • Availability: In Stock
  • $250.00
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