5.3 V8 310hp Stage 1 tuning

The Chevrolet Express 5.3 V8 310hp produces 310 hp and 452 Nm as standard. The YASTUNING Stage 1 remap file takes it to 330 hp and 480 Nm, a gain of +20 hp and +28 Nm. Engine code LMF. ECU: Delco E38. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.