This is a A-EE300 Exhaust Extension PN: EE300Main Description As Following : A-EE300 Exhaust Extension P.N: EE300 Includes CL300 Inlet ClampDim A (1): 3" INSIDE DIAMETERDim B (2): 18" OVERALL LENGTH Crossed From: EE-7 STANLEY MUFFLER , 79023422 ALLIS-CHALMERS , 79023422V AGCO Found in Section & Models : Mufflers/Exhaust Pipes > Exhaust Pipes, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Includes CL300 Inlet Clamp Dim A (1): 3" INSIDE DIAMETER Dim B (2): 18" OVERALL LENGTH