Method for manufacturing an exhaust gas treatment arrangement, in particular for an exhaust gas flow path of a combustion engine, wherein the exhaust gas treatment arrangement comprises a tubular carrier body with a circular circumferential contour with a first axial end region and a second axial end region adapted with a first carrier element and a second carrier element extending along a carrier longitudinal axis and at least one exhaust gas treatment element carried in said carrier body with an intermediate positioning of at least one fiber material layer, comprising the following measures: a) providing the first carrier element as a half shell with a first connection section extending radially outwards and a second connection section extending radially outwards in such a way that the first connection section and the second connection section extend substantially parallel to the carrier longitudinal axis from the first axial end region to the second axial end region, b) providing the second carrier element as a half shell with a third connection section extending radially outwards and a fourth connection section extending radially outwards in such a way that the third connection section and the fourth connection section extend substantially parallel to the carrier longitudinal axis from the first axial end region to the second axial end region, wherein the measures a) and b) comprise providing the first carrier element and the second carrier element as substantially mutually identical sheet formed parts, c) arranging the first carrier element in such a way that the first connection section and the second connection section are offset to one another in a assembling movement direction, d) arranging the second carrier element in such a way that the third connection section and the fourth connection section are offset to one another in the assembling movement direction, e) moving the first carrier element and the second carrier element towards each other in the assembling movement direction in such a way that the first connection section contacts the third connection section and that the second connection section contacts the fourth connection section. a) providing the first carrier element as a half shell with a first connection section extending radially outwards and a second connection section extending radially outwards in such a way that the first connection section and the second connection section extend substantially parallel to the carrier longitudinal axis from the first axial end region to the second axial end region, b) providing the second carrier element as a half shell with a third connection section extending radially outwards and a fourth connection section extending radially outwards in such a way that the third connection section and the fourth connection section extend substantially parallel to the carrier longitudinal axis from the first axial end region to the second axial end region, c) arranging the first carrier element in such a way that the first connection section and the second connection section are offset to one another in a assembling movement direction, d) arranging the second carrier element in such a way that the third connection section and the fourth connection section are offset to one another in the assembling movement direction, e) moving the first carrier element and the second carrier element towards each other in the assembling movement direction in such a way that the first connection section contacts the third connection section and that the second connection section contacts the fourth connection section.