Cadillac STS 4.6 V8 320hp ECU Tuning File

The Cadillac STS 4.6 V8 320hp (2006 - 2010) produces 320bhp and 427Nm in standard form. Our Stage 1 ECU tuning file raises output to 340bhp and 445Nm, a gain of 20bhp and 18Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.