This cut out complete exhaust system came off a 1964 SS Impala big block I had. Removed them to install a correct original style exhaust system. There are no holes or rot...sounded clean and correct when they were on. Have been stored in my basement since. Believe these will fit other X frame G.M. cars from 1958-1964 such as Oldsmobile and Pontiac B bodied cars. Pipes were cut evenly when remov...