About Speed Force Auto Tuning (SFA Tuning)

Speed Force Auto Tuning LLC — known to enthusiasts as SFA Tuning — is a professional performance tuning company headquartered in New Jersey. We specialize in ECU and TCU calibration, advanced diagnostics, ECU repair, and immobilizer and key programming for European, American, and Japanese vehicles.

Whether you're chasing a sharper daily driver or pushing your build into serious territory, we deliver calibrations that are smooth, reliable, and dyno-validated — backed by direct support from the tuner who built your file.