You should contact the track that you will race at. In the case of the track I race at I can run 4 different classes. I have a '65 Valiant so I can run the "Mopar" class, If I put my mufflers and DOT slicks on I can run "Street Legal" class, I run low 11's so I can run the "Pro" class which is 7.50 - 12.99 and I could run the "Super Pro" class which is 7.50 - 11.99 with electronics". But when you loose you are done. Like the guy's have said the test and tune is best if you want to keep making run after run. But the safety equipment is required regardless as to what class you can run, call the track.