Why Did NASCAR Suddenly Ban Rear Exhaust Pipes
davod simthWhy did NASCAR ban rear exhaust pipes? In 1969, Junior Johnson and crew chief Herb Nab found a loophole that helped LeeRoy Yarbrough win the Firecracker 400 at Daytona — and it changed NASCAR rules forever. #NASCARHistory #ClassicRacing #Firecracker400 #JuniorJohnson