Description
PerfTuner/Progmer User Adjustable Vehicle Parameters Global Spark For Timing Across All RPM Ranges Supports On The Fly Power Adjustments Stores 10 Custom Tunes 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
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