3. If a custom rollbar is not something you feel you need, than there are plenty of bars available from aftermarket companies. With a one-size-fits-all bar, compromises need to be made by the end user, because the bar is designed to fit a certain car a certain way. By doing a custom rollbar or cage, the entire system is able to be built to fit the end user’s needs. In our case, the bar will not be NHRA approved (note the easy access door bars), but will give the car a tremendous amount of support and stiffening, and will still be a nice safety addition to the car.