If the caliper bolts are improperly torqued and the caliper detaches from the mounting flange, a loss of braking ability would occur, increasing the risk of a crash.
If the component detaches during deployment, it may enter the passenger compartment and be a projectile within the vehicle cabin, increasing the risk of injury.
If the tubes are misaligned, carbon monoxide could enter the passenger compartment, increasing the risk of illness or death. Additionally, flames may escape the furnace during start up, increasing the risk of a fire.