G6 |
||||||
| Year | Engine | Original Power | Stage 1 | Difference | Vmax | ECU |
| 2004 | 2.4L | 164 Hp 156 Lb-Ft | 176 Hp 170 Lb-Ft | 12 hp | ✓* | E67 |
| 2006 | 3.5L | 200 Hp 220 Lb-Ft | 215 Hp 240 Lb-Ft | 15 hp | ✓* | E38 |
| 2006 | 3.6L | 252 Hp 251 Lb-Ft | 270 Hp 275 Lb-Ft | 18 hp | ✓* | E67 |
| 2007 | 3.6L | 252 Hp 251 Lb-Ft | 270 Hp 275 Lb-Ft | 18 hp | ✓* | E55 |
| 2007 | 3.9L | 201 Hp 221 Lb-Ft | 220 Hp 245 Lb-Ft | 19 hp | ✓* | E38 |
| 2006 | 3.9L | 201 Hp 221 Lb-Ft | 220 Hp 245 Lb-Ft | 19 hp | ✓* | E67 |
*Depends on the software version