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SCT X4/SF4 Power Flash Tuner (11-14 5.0L F-150)

Item T06G09-50
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      Video Review & Installation

      Justin: The preloaded SCT X4 is gonna be for the '11 to '14 5-liter truck owners out there who prefers the grab and go simplicity of a canned tune as opposed to the more tailored custom tune, which can involve a little bit more work and will typically be a little bit more expensive. Now, the X4 will also be for the owners looking to go with one of the most trusted names in aftermarket tuning to increase all-around performance of your V8-powered F-150, while at the same time giving prospective buyers some pretty cool features to tinker around with. Pricing is gonna land right around that $500 price point. And the install will get a simple one out of three wrenches on the difficulty meter from me when it does come time to talk about loading up these tunes. Now, in my opinion, the X4 from SCT is currently the most popular device in the tuning aftermarket, and for good reason. It's gonna be one of the most user-friendly options, in my opinion, in addition to one that will balance features with affordability.Now, there certainly are gonna be some more expensive options out there. In fact, the Livewire TS, also from SCT, comes to mind, and that thing is gonna offer just about everything you could want in a tuner along with a large attractive touchscreen display. And on the other side of the spectrum, you're gonna find more affordable options like the barebones Flashcal from Superchips, which is basically gonna be for the F-150 owners out there who don't need a fancy device but rather are just here for the tunes and nothing else. And with all that said, the X4 is gonna land right in the middle of those devices we just talked about in regards to functionality, features, but also price. Again, 400 bucks here for the loaded X4. Now, the X4 is gonna pack enough features to keep most gadget-happy owners satisfied, but at the same time, it's gonna be attractive enough and mountable for the truck owners who want to keep this thing on display at all times.But now that you know who this might appeal to, let's get into some fun stuff here and talk dyno numbers. Baseline run using our 5-liter F-150 gave us 267 horsepower and 301 pound-feet of torque to the rear wheels. With that tune-up loaded, the truck is now making 289 horsepower and 306 pound-feet of torque, again to the rear tires. This is good for a peak gain of 22 horsepower over those baseline numbers, and gains of as much as 21 horsepower and 21-pound-feet of torque underneath the curve. But with our dyno results out of the way, let's talk a little bit more about the SCT X4 device. And on the surface, you're looking at a tuner roughly the same size as most smartphones out there with a nearly 3-inch full-colored LCD screen. And like most smartphones out there, the X4 can be viewed in your portrait mode, which will be straight up and down, or flip it on its side, and you'll have the landscape mode, which is just going to give you a slightly larger readout.And speaking of mounting the device, this seems like a great time to mention the optional windshield mount that we do offer here on the site. It's gonna make mounting the X4 a lot easier for those truck owners who want to leave the device on display at all times. Or if you want to save yourself a few bucks, I've personally used a cell phone holder in the past to hold my X4 in my truck, but, at the end of the day, that's totally your call. But diving even deeper into the X4, you'll see what this thing really is truly capable of. Now, in my opinion here, guys, the biggest feature is gonna be the on-screen gauges and data logging and the real-time monitoring capabilities. Now, this feature does allow you to keep an eye on your truck's vitals at all times and check on things like your air-fuel ratio, if applicable, intake air temperature, coolant temp, trans temp, ignition timing, things like that, and so much more.Now, you can also use the X4 here to read and clear any possible diagnostic trouble codes or check engine lights, in addition to making changes to your idle RPM, your rev and speed limiters, your axle ratio, in addition to your tire size. Very important if you guys end up lifting your truck a little bit, throw on a set of 33s or even 35s. And if for whatever reason you did want to return your truck to stock, you could easily do so with the push of a button here with the X4. The X4 does also feature built-in Wi-Fi, and that's gonna allow you to handle any future firmware updates wirelessly. It is a nice little feature. And speaking of wires, guys, one thing I really enjoy about the X4, might not seem like a big deal to you all, but that OBD2 cable is completely removable, and that's just gonna make storage in the glove box or the center console much easier. Again, I know, not the biggest deal in the world, but as someone who has owned both styles, the X4, and the previous-generation X3, it does make things a little less bulky.Now, one thing to consider when checking out the X4 from SCT is that if you ever do want to go down the custom tuning road, maybe you want to step up into some bigger modifications, most custom tuners that I am aware of will be able to use the X4 to get those tunes over to your truck, meaning you're just simply not gonna have to go out there and buy a different device to handle the custom tuning duties. The X4 here can definitely do it all. All right, guys. I know we already uploaded the tune for the dyno earlier in the video, but I do want to walk you through the process just to show you how easy it will be. One out of three wrenches on the difficulty meter here, gang. Maybe a few minutes of your time from start to finish, and the best part is you don't even have to get your hands dirty or open up the toolbox for this install.Man: All right. Now, we're gonna tune our truck, and the first step is to plug our tuner in, right to our OBD2, underneath our steering column. All right, so now we're gonna go ahead and tune our vehicle. So with our programmer plugged into our OBD2, all we have to do is turn on our ignition and hit Program Vehicle. Now, the first message is gonna say that this device is not legal for sale or use in California. We don't have to worry about that here in PA. All right, so you want to make sure your key is on. Now this is going to process the data. So, the Engine Preloaded Tunes are for our 5-liter F-150, and we're going to go with the 93 octane tune here, and we're just gonna let it do its thing here. "Previous tune options changes found." Load changes. So, we can change our axle ratio if we change anything in our front and rear differential. We didn't do that here. We did, however, put on some 35s. That's already marked. So let's approve all of that. And this is for our tire pressure monitoring system. We're just going to deny that stuff and go ahead and start tuning.So this just says make sure key is on. It's going to unlock our processor and start tuning our computer here in a second. First, it wants to save our stock tune. That's going to be the way the vehicle came from the factory, so we can easily just flash our computer back to stock. So let's let this run its course, and I'll get back to you when this is done. All right, so here we are. We're getting close to the end of saving our stock tune. You'll see the ignition pop on here. Preparing the data for our new tune. Now we're gonna upload our new custom tune. All right, so let's let this run its course, and I'll come back to you when this is over. So, as you see here, we're coming up on 95%. We're almost done tuning our vehicle. So this right here is just clearing any codes that may have occurred. And there we go. Download's been complete.All right, so I want to go through some of the menu options in your programmer. As you can see, the first one is going to be Program Vehicle. If you click into that, you'll see one of the first things you can do is Return to Stock. We're not gonna do that right now, so I'm going to Exit out of that. And then the next one is Gauges/Datalog. So once you click into this, it'll say make sure your key is on. Ours is on. And then in here, you're gonna see a couple of gauge menus like ETC Throttle Angle, Throttle Position, and if you give it a little gas, you can see some of the voltage and stuff in there. So let's go one back here. Go to Stop Datalog. Now, Vehicle Functions down here, you can read and clear trouble codes. So if your check engine light comes on, you can actually plug this programmer pack into your OBD2, read those codes, and clear them.In this Special Functions, you can do a KAM Relearn, as well as a Crank Relearn there. So we don't need to do any of that right now. Vehicle Info, that's going to show you your VIN number and a couple other things like that as you see there. And your ECU part number, your TPS, what they're set at, all that good stuff. Device Info, and that will just show you what kind of device, all your info. If you need to send this out to SCT for any reason, they may ask you to go into that menu. And that's about it. This is Device Settings. You can change your brightness, your color scheme. There's a couple different options here. You can go blue, or you can go dark, which is kind of like an inverted color option there. We like to keep it on red, and yeah, that's about it for the menu here. It's a very simple device, easy to use, and affordable.So that's gonna wrap up my install of the SCT Power Flash Tuner for this F-150. And for all things F-150, keep it here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • SF4/X4 is the Newest Replacement for the Popular SF3/X3
      • Pre-Configured SCT Tunes
      • Improves Horsepower, Torque, Overall Performance, and More
      • On Screen Data Logging and Monitoring
      • Reads/Clears DTC Trouble Codes
      • Full Color LCD Display with Auto Dim Feature
      • Built-In WiFi for Easy Updates
      • PC/Windows Compatible Only
      • Works on All 2011-2014 5.0L F-150s


      Increased HP and Torque. From the factory, the manufacturer programs their vehicles to cater to the needs of the daily driver, not the performance enthusiast. After loading a SCT pre-configured strategy tune on a vehicle, even a bone stock, unmodified coyote powered F-150 will realize noticeable gains in Horsepower, Torque, and Fuel Economy.

      Increase your mod's potential.
      Factory computer settings are calibrated for the original factory components. When making performance modifications, you need to recalibrate the vehicle's computer to realize the full potential that these modifications can achieve.

      Compact Design. The SF4/X4 Power Flash Tuner measures in at 2.7” wide X 5.5” 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" 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.

      Diagnostics. 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 trouble codes rather than paying a dealer to do the same. Its as easy as a few simple steps.

      On Screen 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 or Real Time Monitored Vehicle Data, view popular sensor data such as EGT, Air/Fuel Ratio or any other 0-5 Volt source.

      Easy to load; easy to restore. When you load a SCT pre-configured strategy 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.

      SCT SF4/X4 Power Flash Tuner Features:

      • The SF4/X4 by SCT is the newest replacement for the popular SF3/X3
      • Full color LCD display with auto dim feature
      • Built-in WiFi for easy updates
      • On screen data logging and monitoring
      • Reads/clears DTC Trouble Codes
      • PC/Windows compatible
      • Tuner can be taken to a local shop for DYNO tuning

      SCT SF4/X4 Adjustable Parameters:

      • WOT Fuel Adjustment
      • Idle RPM
      • Spark Adjustment
      • Transmission Shift Points
      • Axle Ratio
      • Fuel Injector Size
      • Tire Size - Rev / Mile
      • Air Intake Selection
      • Cooling Fan Temps
      • Traction Control On / Off
      • Rev / Speed Limiters
      • Two Step On / Off RPM
      * Not all adjustments available on all vehicles.

      Application. The SCT SF4/X4 Power Flash Tuner is designed for use on all 2011 to 2014 F-150s equipped with the 5.0L V8 engine.

      Technical Note. This SCT Power Flash Tuner is not legal for use in California on pollution controlled vehicles.

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      Fitment: 2011 2012 2013 2014 Details

      SCT 7015

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) SF4/X4 Power Flash Tuner
      • (1) USB PC Interface Cable

      Tech Specs

      Memory Size:4 GBCustom Tunes Held:10
      Year:2011-2014 5.0LModel:SF4/X4 Power Flash F-150 Pre-Loaded Tuner
      Manufacturer:SCTSpecial Features:Full color LCD display

      Customer Reviews (92)

        Questions & Answers

        10 More Questions

        Will It Fit My F-150

        • 5.0L V8 - 11, 12, 13, 14

        Not Compatible with Mac Software.

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