The X4 Power Flash arrives Pre-Loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE! Programming your vehicle with one of SCT's pre-loaded performance or fuel economy tune files is as easy as 1-2-3. Simply plug the OBDII connector into your vehicle's OBDII port, select the pre-loaded tune file using the simple to navigate menu and within minutes the X4 programs your vehicle. Stores up to 10 custom tunes. Not Available for California residents.
For Modified Vehicles: A LaSota Racing Custom Tune is used based on your modifications. Prior to ordering, click here to submit information about your vehicle so a custom tune can be built for you. All X4's include a Free USB Cable. Modified vehicle tunes include 90 days of free emailed tunes. Ohio residents 7% sales tax will be added.