1 The Mustangs Plus Street Bar comes as a main hoop with the feet welded into place, along with the two rear kickout bars with the feet welded into place. Since we opted to install the company's removable crossbrace, we relied on the skills of City Boy Pete Epple to weld in the tabs for it prior to any paint or powdercoat. After mocking up the seats and rollbar in the car, we were able to determine the height of the crossbrace, as you want the shoulder belts to run horizontally backwards, or at no more than a 20-degree angle down to the crossbrace. Check with your sanctioning body, as each may have its own preferences. As a general rule, the ideal upper anchor points should not be further back than 8 inches from the back of the seat.