Why Holden Colorado Airboxes Fail
The factory RG Colorado airbox has a known weak point in its design. It relies on small plastic tabs that can be under up to 60kg of force each.
Over time:
- Heat cycles and vibration degrade the plastic
- Repeated servicing and removal puts additional stress on the clips
- Mounting points can crack or break
- The airbox lid no longer seals correctly
- Dust can bypass the filter
Replacing the airbox with another factory unit often just leads to the same problem again.