In the case of an accident, it helps protect the driver's shoulders and spine. The harness guides also prevent excessive shifting and fatigue of the driver during the high G loads of cornering and braking. The bars are easy to install and remove, and will get you ready for the track in just a few hours.  

Because of mounting locations in the C6, the B-pillar plastic sail panel covers will require two holes to be drilled through them. Brey-Krause provides plastic plugs to cover the holes if the bar is ever removed. Sail panels replacements can be ordered from your GM Dealer (Part 15277640 for driver side, and 15277641 for passenger side) if the plastic plugs are not the desired solution. Strength requirements for harness mounts are considerably greater than those for harness guide bars since they must support the entire load applied to the belts.

Off-Road~ Use- Only