| Diameter | A | Intake | 27.8 - 28.0 Millimeter (mm) |
| B | Intake | 29.5 - 29.7 Millimeter (mm) |
| C | Intake | 31.0 - 31.016 Millimeter (mm) |
| D | Intake | 31.080 - 31.096 Millimeter (mm) |
| E | Intake | 31.500 - 31.516 Millimeter (mm) |
| F | Intake | 31.580 - 31.596 Millimeter (mm) |
| G | Intake | 35.95 - 36.55 Millimeter (mm) |
| H | Exhaust | 21.1 - 23.0 Millimeter (mm) |
| I | Exhaust | 24.5 - 24.7 Millimeter (mm) |
| J | Exhaust | 26.0 - 26.016 Millimeter (mm) |
| K | Exhaust | 26.080 - 26.096 Millimeter (mm) |
| L | Exahust | 26.500 - 26.516 Millimeter (mm) |
| M | Exhaust | 26.580 - 26.596 Millimeter (mm) |
| N | Exhaust | 35.92 - 36.52 Millimeter (mm) |