If you're launching with your front wheels off of the ground, AFCO Racing Eliminator BNC valving shocks are a perfect fit for you. AFCO Racing BNC shocks are designed to eliminate bounce, after a grueling launch off of the line. All racers know that when you nail a breathtaking wheel stand launch, getting back down smoothly is the next step to making a perfect pass. These shocks are great for stock, Super Stock, True Street, and other drag racing classes. AFCO Racing Eliminator BNC valving shocks feature a twin-tube design.