This is a A-EE134 Exhaust Extension PN: EE134Main Description As Following : A-EE134 Exhaust Extension P.N: EE134 Includes CL134 Inlet ClampDim A (1): 1 3/4" INSIDE DIAMETERDim B (2): 18" OVERALL LENGTH Crossed From: EE-2 STANLEY MUFFLER , 79023417 ALLIS-CHALMERS , 79023417V AGCO Found in Section & Models : Mufflers/Exhaust Pipes > Exhaust Pipes, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Includes CL134 Inlet Clamp Dim A (1): 1 3/4" INSIDE DIAMETER Dim B (2): 18" OVERALL LENGTH