This standard stock dual exhaust rear exit replacement system is manufactured in 16 gauge alumnized pipe bent to original manufacturers specifications.Systems includes:2 head pipes 16 gauge2 tail pipes 16 gauge2 stock mufflers2 flangesClampsImportant: Not for use on vehicles with High Performance or 348ci engines.For 1961 models with 348ci engines use Part # EX8012.For 1962-64 models with high performance engines use Part # EX8013.Note: Shipped truck freight.