EXPRESS
Year Engine Original Power Stage 1 Difference Vmax ECU
2007-2014 4.3L 195 Hp 260 Lb-Ft 215 Hp 280 Lb-Ft 20 hp ✓* E37
2008-2015 4.8L 280 Hp 294 Lb-Ft 300 Hp 315 Lb-Ft 20 hp ✓* E38
2008-2015 5.3L 310 Hp 334 Lb-Ft 330 Hp 355 Lb-Ft 20 hp ✓* E38
2008-2015 6.0L 323 Hp 373 Lb-Ft 350 Hp 400 Lb-Ft 27 hp ✓* E38
2016-2019 4.8L 285 Hp 295 Lb-Ft 305 Hp 315 Lb-Ft 20 hp ✓* E78
2016-2019 6.0L 329 Hp 373 Lb-Ft 355 Hp 400 Lb-Ft 26 hp ✓* E78
2018-2019 2.8L 181 Hp 369 Lb-Ft 240 Hp 420 Lb-Ft 59 hp ✓* E98
2018-2019 4.3L 276 Hp 298 Lb-Ft 296 Hp 318 Lb-Ft 20 hp ✓* E92

*Depends on the software version