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G8

Year Engine Original Power Stage 1 Difference Vmax ECU
2009 3.6L 256 Hp 248 Lb-Ft 274 Hp 275 Lb-Ft 18 hp ✓* E67
2009 6.0L 400 Hp 400 Lb-Ft 420 Hp 430 Lb-Ft 20 hp ✓* E38
2009 6.2L 415 Hp 415 Lb-Ft 435 Hp 440 Lb-Ft 20 hp ✓* E38

*Depends on the software version