No you can stay in street trophy no problem. If you join a team and run in the Summit racing series, you'll be in the sportsman category. They are both bracket classes. What I'm talking about is no cares whats under my hood. Even 11 sec runs don't impress the hardcore racers. Now if I go to ricer night, then you'll have kids coming up and curious. The only thing you can't have in sportsman is nitrous and some electronics that don't apply to us.