my objective was to increase the safety of the harnesses as i have had them bolt to the base of where the rear seats would go. in an accident there would be a lot of downward force on the seat back and i have heard of instances where the seat back breaks and can break your back!
the harness bar alters the angle of the harness and distributes the force through existing seatbelt points. most seem to fit similar to that of the red option shown above. however, i didnt like that angle and felt that the yellow option would suit the way the force is to be applied to the bar.
plus the bar adds extra bling, which is always a good thing