This is a A-EE112 Exhaust Extension PN: EE112Main Description As Following : A-EE112 Exhaust Extension P.N: EE112 Includes CL112 Inlet ClampDim A (1): 1 1/2" INSIDE DIAMETERDim B (2): 18" OVERALL LENGTH Crossed From: EE-1 STANLEY MUFFLER , 79023416 ALLIS-CHALMERS , 79023416V AGCO Found in Section & Models : Mufflers/Exhaust Pipes > Exhaust Pipes, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Includes CL112 Inlet Clamp Dim A (1): 1 1/2" INSIDE DIAMETER Dim B (2): 18" OVERALL LENGTH