I just installed them on my 70' barracuda and the diffrence is night and day. Though when I go into corners, I get pulled out of the seat a bit, so I'll have to go to full restraints when the whole system is done being installed. Easier ride travel, better cornering and does not have violent reactions if you hit a bump or pothole. Thought I have to remove mine to repair the fuel line it cut into probably one of the best mods I have done to the car.