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SCT Mustang GT/EcoBoost X4 Tuner w/ Steeda Certified Tune (2011-2017)

3 Review(s)
$187.23 (29%)
*Over 20+ hp increase with tuning alone*. SCT's X4 tuning device is the latest evolution of the X series of tuning devices from SCT. SCT's X4 features great improvements in design and use.
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Part Number: 388 7015 TFL
7015 TFL

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SCT's X4 tuning device is the latest evolution of the X series of tuning devices from SCT. SCT's X4 features great improvements in design and use. This unit is a smaller, more compact device than the X3 it replaces.

The X4 features a larger, brighter, easy to read color screen with auto dim and user adjustable portrait and landscape modes. The device holds up to 10 custom tunes which can be supplied by SCT custom tuning dealers and also includes pre-loaded strategy files from SCT.

In addition, the X4 offers improved datalogging capabilities right through the device or when used in conjunction with a laptop and SCT's Live Link software.

Purchase of this SCT X4 Tuner includes Steeda Certified Tune for:
  • Mustang - 2011, 2012, 2014, 2015, 2016, 2017

WARNING: Will Not Ship To California. Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations. This product does not support any changes to the emissions systems on the vehicle including but not limited to catalytic converter and EGR deletes.

NOTE: . Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer's modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.

This limited warranty is the only express warranty applicable to Steeda Autosports products. Other rights may arise or vary from state to state in the United States. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.

  1. New tuning devices are shipped out "blank". Upon receiving the device, utilize it to retrieve your vehicle's Strategy Code
  2. With the strategy code, visit our Custom Tune Request Form. Fill out the requested details on your car.
  3. Your Custom Steeda Tune will be emailed to you in approximately 3-5 days. Download the tune onto the device, flash your vehicle and enjoy the new performance.
Product Benefits:
  • Data Logging and Monitoring of Critical Engine Parameters
  • Read and Clear Diagnostic Trouble Codes
  • Flash and Go Convenient Tuning
  • Store up to 10 Custom Tunes

CA Residents: Cancer and Reproductive Harm WARNING

Fitment & Features


Manufacturer: SCT Tuning

Vehicle Fitment:

Fits Model Year: 2011, 2012, 2013, 2014, 2015, 2016, 2017

Customer Reviews

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Average Customer Ratings


SCT Tuner
Should have purchased this sooner. The tuner in addition to the tune from Steeda's team to compliment the CAI, LT Headers, and Throttle Body was an easy install and for a lack of better words just plain AWESOME
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SCT X4 Mustang Tuner w/ Steeda Lifetime Certified Tunes - Fantastic!
Great product. Easy to use. I had a small technical glitch which Matt fixed for me. On a recent trip to VA, I averaged 27 mpg on the Interstate. An improvement of 2 mpg. The car is more responsive and much more fun to drive. Plus it pulls very strong throughout the rev range as a couple of MOPAR drivers recently found out. If you are thinking of getting one, do it now. Do not wait. I believe you will be happy with the results.
Did you find this helpful?  8 of 9 Found Helpful
Verified Buyer  
SCX Tuner with Steeda life time Tunes
I bought during the Holidays. I've since had 2 separate tunes sent too me 93 Octane & I'm adding the 302 Boss Intake on my 11GT so Steeda wrote that install tune also. Very easy too use I actually cant believe I waited this long!
Did you find this helpful?  6 of 7 Found Helpful
Verified Buyer  
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