NOS muffler (bottom - right) for Honda CB-500 A (K1, K2, CB-550A, KA, K1). This pipe has never been installed or used, and is in great shape for the age. This is the original chrome. Has two very small dents, shown in picture # 3. Part number is 18300-374-707 (Old part number that this # replaces is 18400-374-700).