You have to watch which angle the harness bar puts the shoulder belts. I forget what angle it is but there is a specific angle range that you want the belts to come from the back of the seat to the point that they mount. Without that angle you are at a higher risk of being hurt in the case of an accident. I say this because the picture of the above harness bar( I don't know if it is adjustable) make the shoulder belts go up to wrap around the bar, which would not give you that shoulder belt angle that you are supposed to have when mounting your belts.