Carbon dioxide emission control from automobiles termed to be the vast activity and various techniques were under research to overcome this problem. One of the way to reduce the CO2from automobile is implementation of ZSM-5 Zeolite in the exhaust flow chamber. Here the zeolite was preheated to increase its porosity and ability to capture the carbon emission through exhaust. A separate chamber is designed with the aid of CATIA and analysed for optimized back pressure using STAR CCM and FLUENT. Parameters such as pressure drop, pressure, pressure flow, static pressure and turbulence were analysed and optimised to control the flow of exhaust gas through solid adsorbent, to increase the rate of adsorption and to enhance the retention time and porosity. Emission testing were taken out with the aid of AVL 444 N di-gas analyser in the presence of flow meter, testing results showed 5.89% reduction in CO2 and 9.44 PPM reduction in HC emission. Testing results were supported by lime water test for confirmation.