TRAILBLAZER
Year Engine Original Power Stage 1 Difference Vmax ECU
2007-2009 5.3L 300 Hp 321 Lb-Ft 320 Hp 345 Lb-Ft 20 hp ✓* E67
2007-2009 6.0L 390 Hp 400 Lb-Ft 415 Hp 425 Lb-Ft 25 hp ✓* E67
2008-2009 4.2L 285 Hp 276 Lb-Ft 295 Hp 296 Lb-Ft 20 hp ✓* E67
2014-2018 2.8L 186 Hp 369 Lb-Ft 240 Hp 420 Lb-Ft 54 hp ✓* E98

*Depends on the software version