If you think your skills are good enough to win the race, you need to make sure you are legal to enter. The SxS Pro Class uses your standard set of regulations, so if you are an actual racer, you should know what your rig needs to qualify. For those of you looking to enter the Sportsman Class, there are plenty of restrictions you need to be aware of. First and foremost, this is a stock production class, so almost all modifications will render your rig illegal. The only real change you can make is the addition of an aftermarket suspension setup, but it must use the factory mount and pivot points. Tires can also be changed, but you are limited to a maximum size of 35x10.5-15. If you have more concerns about your rig and its legality for the event, you can check out the full rules here.