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Lund Racing X4/SF4 Power Flash Tuner with 1 Custom Tune (15-20 GT350)

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Lund Racing X4/SF4 Power Flash Tuner with 1 Custom Tune (15-20 GT350)
  • Buy this Tuner & Submit your Mustang's Info
  • A Lund Racing Calibrator will write custom tune files specifically for your Mustang & Mods
  • Load 'em on your Mustang and GO!

Power and Performance. Improve the power and performance of your 2015-2020 Shelby GT350 with a SCT SF4/X4 Power Flash Tuner that includes (1) Lund Racing Custom Tune File. When your Mustang rolled off the assembly line, Ford programmed it to cater to the needs of the daily driver, not the performance enthusiast who adds aftermarket bolt-on modifications in the search for more power. So, if your Mustang is bone stock or if you have added a cold air intake, throttle body, exhaust or other bolt-on performance upgrades, you'll need a Lund Racing custom tune to see the full power potential that these aftermarket mods can make.

One Custom Lund Racing Tune File. When you order this SCT SF4/X4 Power Flash Tuner, you aren't just getting a tuner. You're getting the tuner and 1 dyno-tested custom tune file that is written specifically for your Mustang and your particular modifications by a Lund Racing calibrator. By optimizing the air/fuel ratio, adjusting ignition timing and tweaking cam timing, a Lund Racing Custom Tune will squeeze out the extra power Ford left on the table. This tune requires the use of 91-93 octane fuel or E85 - depending on application.

Free Tune Revisions. Lund Racing will provide tuning revisions for minor modifications free of charge for up to 3 months after you’ve received your initial tune. Changes to your air intake, throttle body, exhaust, gears are all considered minor modifications. The countdown starts from the time you receive the tune(s) which may be up to 7-10 business days following your order.

Compact Design. The SF4/X4 Power Flash Tuner measures in at 2.7-inch wide X 5.5-inch tall making it much smaller than the original SF3/X3 for easy storage in your center console or glove box. The cord is detachable and there is no battery or power supply needed. It uses the power from your vehicle's diagnostic port or computers USB connection.

Full Color Display. The SF4/X4 Power Flash Tuner features a full color 2-3/4-inch diagonal LCD screen with user adjustable portrait or landscape modes. The SF4/X4 also has a convenient power saving auto dim feature.

Built-in WiFi. The SF4/X4 Power Flash Tuner is now WiFi-capable meaning you will no longer have to plug it into your PC/Windows computer to receive the latest SCT firmware updates. Once setup with your Wi-Fi password, the X4 will download the latest firmware updates via the internet.

Data Logging and Monitoring. With a full color LCD display, the SCT SF4/X4 Power Flash Tuner makes it easy to read the Built-In Data Logging and/or the Real Time Data, so you can view popular sensor data such as EGT, Air/Fuel Ratio or any other 0-5 Volt source.

Diagnostics Tool. The SF4/X4 Power Flash Tuner can also be used as a diagnostic code reader. Save yourself hundreds of dollars each year by reading and clearing your own Diagnostic Trouble Codes (DTCs) rather than paying a dealer to do the same. It's as easy as a few simple steps.

Easy to Load; Easy to Restore. When you load your custom tune on the vehicle, the tuner automatically stores your vehicle's factory settings. To return the vehicle to its factory settings, just plug the tuner back in, select the option to restore the factory settings, and you're done. This is ideal for visiting dealerships for warranty work.

Not CARB Certified. The SF4/X4 Power Flash Tuner is not CARB certified, therefore it is not legal for use in California or any other state adopting California emission standards. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

Will Not Ship To California. Due to state regulations, this product cannot be shipped to addresses in the state of California. Lund Racing will not write or provide custom tune files for residents of California.

Application. This SCT SF4/X4 Power Flash Tuner that includes 1 Custom Lund Racing Tune File is specifically designed for 2015-2020 Shelby GT350 Mustang models equipped with the naturally aspirated 5.2L V8 engine that are running pump gas with basic bolt-on modifications. Aftermarket camshafts, aftermarket and/or ported Heads are not supported with this tune. Please select your application from the options available.