In 1972 David Rash had a problem. He could not find the exhaust pipe he needed for his race bike. He knew that the proper exhaust for his engine configuration would give him an edge over his competition. However, no such pipe was available. So he did the only thing he could do. He built his own exhaust pipe and along with it D&D Performance Enterprises. That was 30 years and more than 250,000 pipes ago and D&D Performance exhaust systems are some of the leading performance motorcycle exhaust systems in the world. D&D uses the state of the art Super Flow Eddy Current Ram Air Dyno, Super Flow Flow Bench, and the first in the industry multi-cylinder Lambda Fuel Air Ratio Sensors interfaced with the Dyno for real time meter and graph analysis. D&D Performance Enterprises is headquartered in Fort Worth, Texas.