A mixer assembly for a vehicle exhaust component comprising: an outer housing having an inlet area configured to receive exhaust gas from an upstream exhaust component and an outlet area configured to direct exhaust gas to a downstream exhaust component, and wherein the outer housing includes an outer wall and a connection interface configured for attachment to an exhaust component housing; the outer housing having a base wall with the outer wall extending about a periphery of the base wall , and wherein the connection interface is positioned opposite of the base wall ; a deflector wall to direct exhaust gas from the inlet area to the outlet area , the deflector wall having a wall portion spaced inwardly from the outer wall to define a flow guide path configured to first direct exhaust gas flow from the inlet area in a first direction (F1) against a first portion of the outer wall , then direct exhaust gas flow in a second direction (F2) against a second portion of the outer wall that is transverse to the first portion,the deflector wall and the outer wall then cooperating to direct exhaust gas flow in a third direction (F3) that is transverse to the second direction (F2) and opposite of the first direction (F1) and then to direct exhaust gas in a fourth direction (F4) that is transverse to the third direction (F3); wherein the deflector wall comprises a U-shape; wherein the outlet area to a SCR-catalyst is located within an internal area defined by the deflector wall , the deflector wall creating a swirling effect of exhaust gas in a common planar area defined by the deflector wall prior to exiting the outer housing ; and characterized in that the outer housing includes an opening configured to receive a doser that injects a fluid into the flow guide path , wherein the doser opening is positioned downstream of the inlet area such that the fluid is sprayed into the swirling gas flow between the deflector wall and the outer wall at a location upstream of an outlet area . an outer housing having an inlet area configured to receive exhaust gas from an upstream exhaust component and an outlet area configured to direct exhaust gas to a downstream exhaust component, and wherein the outer housing includes an outer wall and a connection interface configured for attachment to an exhaust component housing; the outer housing having a base wall with the outer wall extending about a periphery of the base wall , and wherein the connection interface is positioned opposite of the base wall ; a deflector wall to direct exhaust gas from the inlet area to the outlet area , the deflector wall having a wall portion spaced inwardly from the outer wall to define a flow guide path configured to first direct exhaust gas flow from the inlet area in a first direction (F1) against a first portion of the outer wall , then direct exhaust gas flow in a second direction (F2) against a second portion of the outer wall that is transverse to the first portion,the deflector wall and the outer wall then cooperating to direct exhaust gas flow in a third direction (F3) that is transverse to the second direction (F2) and opposite of the first direction (F1) and then to direct exhaust gas in a fourth direction (F4) that is transverse to the third direction (F3); wherein the deflector wall comprises a U-shape; wherein the outlet area to a SCR-catalyst is located within an internal area defined by the deflector wall , the deflector wall creating a swirling effect of exhaust gas in a common planar area defined by the deflector wall prior to exiting the outer housing ; and characterized in that the outer housing includes an opening configured to receive a doser that injects a fluid into the flow guide path , wherein the doser opening is positioned downstream of the inlet area such that the fluid is sprayed into the swirling gas flow between the deflector wall and the outer wall at a location upstream of an outlet area . <EOS>