2021-2023 5.0L F-150 SCT Performance X4/SF4 Power Flash Tuner Review & Dyno

Increases Horsepower and Torque. Increase the power and performance of your stock 5.0L Coyote powered F-150 with a SCT SF4/X4 Power Flash Tuner. The SF4/X4 Power Flash Tuner supports third party custom tune files and also comes pre-configured with SCT's very own strategy tune files. From the factory, Ford programs their vehicles to cater to the needs of the daily driver, not the performance enthusiast who adds aftermarket bolt-on modifications in the search of more power. After loading a SCT pre-configured tune, even a bone stock, unmodified F-150 will see noticeable gains in horsepower, torque, and fuel economy.

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.

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 time and money 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.

Intro - 0:00
Features - 0:32
Dyno - 0:49
Construction - 3:53
Price - 4:40
Install Difficulty - 5:05
Full Install - 5:32

Item T585994-50
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[brook]

Don’t use the canned tunes. Get a custom Oz Omega tune for your 5.0. Makes a night and day difference.

[craigjacobson]

so with the 2022 5.0 you don't need to turn the key off and on to tune like others when they connect to OBD port?

[glencourtney]

I do step by step and it’s same as yours until finial tune and after 6 hrs still said same thing. ??? Finalizing tune

[ChaseHeckendorn]

How long does the finalizing part take

[ChaseHeckendorn]

I’m stuck on the finalizing tune portion I’ve let it sit for almost an hour get nothing I’ve updated and have tried multiple times any suggestions or a solution

[johnc]

$26 a horsepower and $40 a foot pound of torque too high