Intake Manifold: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Manifold | ||||
| With Engine Model 4G63 | 2.3 | 1.6 | B | |
| With Engine Model 420A | 2.0 | 1.4 | B | |
| NOTE | ||||
| With Turbo, Add | 0.5 | 0.3 | B | |
| Plenum | 1.3 | 0.8 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Manifold | ||||
| With Engine Model 4G63 | 2.3 | 1.6 | B | |
| With Engine Model 420A | 2.0 | 1.4 | B | |
| NOTE | ||||
| With Turbo, Add | 0.5 | 0.3 | B | |
| Plenum | 1.3 | 0.8 | B |