Hello to all,

I would like to ask about my cosworth vibration,so i have replace all stock bushs with polyurethane,the vibration comes from the rear,i have check my wheels 3-4 times and balanced too,my prop shaft have new joints and balanced too,(i have tested my second too),and the car still have the vibration,all mounts,engine,geaρbox,diff are genuine,so my exhaust is magnex and is heavy enough than single mongoose etc..,and i'm thinking due the weight, affect,and give vibration,cause the exhaust mounts are on rear beam and my rear beam have hard-polyurethane bushs,so does anyone have the same problem? also i'm thinking to add exhaust flexi,so what is your opinion?

Thanks a lot