A pre-cleaner for an air induction system of an internal combustion engine including a housing enclosing an upper chamber and an aspirator port chamber, the upper chamber containing a plurality of particulate separator tubes for removing particles from air flowing through the tubes en route to the engine. The active sensing heads combine image sensors for capturing images of the targets with at least one spatial relationship sensor for sensing a relationship between the active sensing heads. A cam is pivotally coupled to the body and is accommodated by the slot. The laminate is subsequently vacuum-formed into a three dimensional shape approximating the desired shape of a final trim product. A ball can be disposed within each cavity, and the ball can be adapted to selectively engage the port.