* Vehicles with Automatic Transmissions ONLY Allows you to change the transmissions shift pressure.Allows you to Add or Remove Fuel at Wide Open Throttle.Allows you to Add or Remove Timing by RPM Range.Allows you to disable the vehicles Traction Control without using the button in the vehicle.Allows you to Increase or Decrease the vehicles idle speed.

Allows you to Remove, Increase or Decrease the vehicles speed limiter.

Allows you to disable the CMCV (Charge Motion Control Valve) in your vehicles PCM to prevent a Check Engine light and other issues associated with removing the CMCV plates in your vehicle.

Allows you to adjust for different sized fuel injectors.

Disables the Rear O2s and eliminates CEL caused by rear O2 removal.

X4 Flash Tuner Adjustable Options - * Note: Adjustable Options vary for each vehicle and are not available on all vehicles

Built-in Wifi allows you to easily attach to your local area wireless network to download device updates.

USB Interface Cable & Livelink Datalogging software included.

With all SCT devices, once returned to stock, there is no footprint or trace of the tune in the vehicle's PCM. Restoring your vehicle to the stock PCM program is as easy as selecting 'Return to Stock' from the device menu.

The X4 Flash device backs up your factory PCM program during installation should you ever need to return your vehicle to the stock program.

View & record your vehicles PCM data on the LCD screen or on your laptop.

Stores up to 10 custom tune files created by your local SCT Custom Tuning Dealer.

Adjust for common performance bolt-ons such as Cold Air Kits, Exhaust Systems & Gears.

Installs in minutes via your vehicle's ODB-II port.

Monitor EGT temps, air-fuel ratio and other popular sensor data.

Reads and clears diagnostic trouble codes quickly & easily, saving on expensive diagnostic fees.

Full Color LCD display for easy viewing, day or night.

Increases your vehicles Horsepower, Torque, Throttle Response and even Fuel Mileage.

Sct x4 power flash competition tuner