I am new to this forum and this question may get asked quite often I am not sure. I have a 71 challenger, it has sub frame connectors already I am wondering if I should be looking into torque boxes as well for it. The engine makes 530 hp and 600 tq. It is a street car that gets driven to sat night dinner with my wife and kids and car shows. I just want to be safe as to not twist the heck out of the car. I am not too concerned about stock appearance, I would like strength rather than that they are exact appearing.