4.8 V8 275hp Stage 1 tuning

The Chevrolet Express 4.8 V8 275hp produces 275 hp and 393 Nm as standard. The YASTUNING Stage 1 remap file takes it to 295 hp and 420 Nm, a gain of +20 hp and +27 Nm. Engine code L20. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.