The technical edge:

Cast aluminum

These have baffles which can be easily removed if you want

1929-73 45 Solo

MCM Slash Cut Drag Pipes 1957-1985 Harley-Davidson Sportster (Except 1979) - Chrome Bar Rise_12+ inches The technical edge:These really inexpensive exhaust pipes may have small imperfections from the manufacturing process, or in the chrome. We think they can be a good budget option, but they may need a bit of finessing. This classic style MCM drag pipe set features slash cut ends. Chrome plated steel construction with a channel mount on the back for custom chopper mounting options. Exhaust pipes measure 1 3 4" diameter. Fits 1957 1985 Harley Davidson Sportster (Except