Fitted my scorpion system on Friday and has taken me the Friday night and today to try and adjust the back boxes to look as straight as possible, the thing is when the cars warm and I've given it a bit of stick the exhaust completely moves again and sometimes is knocking off the bumper which I do not want! Anyone have anyway of stopping this? Do I need to uprate the exhaust mounts and rubbers. All input would be helpful. Cheers