You are buying one nice 1966 1967 1968 Corvette Camaro Z28 RS SS Nova SS Impala SS Belair El Camino SS Chevelle SS 302 327 396 402 427 NOS smog pump air injector silencer muffler. This original GM part number is 1492575 may also be correct for other 1966 1967 1968 cars like the Pontiac GTO Firebird Tempest LeMans Bonneville Catalina Oldsmobile 442 Cutlass Supreme F-85 Buick GS Gran Sport Skylark Special Limited LeSabre see photos no returns. Key words are L82 L88 Fuel Injection 427. The shipping cost include some of the ebay, pay pal and handling costs .After you receive this part and if there is a problem please contact me prior to leaving me a negative feedback so we can resolve the problem. Thank You.