Drive shaft loops and roll bars are mandated for all the cars that reach certain ET's Now roll cages for some because because of the ET and speeds being reached. These changes are a must to be able to compete at a sanctioned track. Brakes can be upgraded on every make and model depending on what the owner is comfortable with. This is something that is good for the whole class not just one make or model. I just think when you start making concessions for any one make or model it is a move in the wrong direction.