This X4 comes with preloaded tunes for selected vehicles only; please contact us to confirm your vehicle (440-201-9123 / info@buyp3.com). For custom tuning, you must contact a Custom Tuning Dealer to get custom tunes for your vehicle.  Contact us if you need help locating one.

SCT X4 Power Flash programmers arrive to you pre-loaded with dyno-proven tune files for select vehicles, to unlock your vehicle's hidden potential! Programming your vehicle with one of SCT's pre-loaded tune files is as easy as 1-2-3. Simply plug the OBD-II connector into vehicle's OBD-II port, select the pre-loaded tune files using the simple to navigate menu and in minutes the X4 programs your vehicle for your particular driving style.

NOTE:  All software including the Device Updater is not Mac compatible.  A PC with Windows Vista/7/8/10 will be required.
The X4 Performance Programmer connects high-performance tunes to your vehicle for a boost in horsepower & torque. Awaken your engine to its real potential with preloaded, dyno-proven tune files through the easy-to-use functionality. Modify a variety of parameters at the touch of a button, all while monitoring gauges on a customizable display.

SCT tuning devices will not modify or delete vehicle emissions. SCT products purchased comply with the Clean Air Act. Tunes that are preloaded in our devices have gone through hours of testing to ensure the safety of the drivers and the environment overall. Custom tuners are required to follow the guidelines of the Clean Air Act as they develop their own tunes for our devices.

Additional features and facts about SCT X4 Power Flash programmers include:

* Stores up to 10 custom tune files
* Full color LCD display
* High-speed data logging/monitoring
* Reads/clears DTC trouble codes
* Dual analog inputs
* Most popular vehicles supported
* Installs quickly and easily
* Easy restoration back to stock
* User adjustable vehicle parameters
* USB Interface cable included

Some of What You Can Adjust*
*Adjustable Options vary for each vehicle and are not available on all vehicles.

Tire Size
Correct the speedometer if you have changed your tire size from stock.

Axle Ratio
Correct the vehicle speedometer (and fuel efficiency calculations) if you have changed the gear ratio on your vehicle. If no gear ration modifications have been made to the vehicle, then choose the stock setting when the tuner prompts you to choose a gear ratio. This will ensure that no modifications are made to the stock program.

Transmission Shift Firmness
Change the shift firmness of an automatic transmission.

Rev Limiter
Regulate the highest RPM that an engine can reach before the engine is electronically limited. Increasing the RPM limit is recommended only for racing purposes. One of the most important ways to protect your engine from damage is to keep the RPMs from going too high.

Idle Adjust
Enable and select a value for Engine Idle position. This is a great feature for keeping voltage in the vehicle up while running auxiliary electronics off of the vehicle’s power system.

Custom Tuning & Pre-loads Available on most vehicles

Download the Updater Here

Quick Start Guide