Negroblack

GM everyone I'm new here. I have an 05 tsx manual transmission. Negroblack. (Black int. Black exterior). I had the catalytic converter change yesterday according to the computer that was the code. After replacing the cat still have the same problem. The car hesitate When I step on the gas. I'm on the 5th or 6th gear I step on the gas and it feels like a carburetor from back in the days. Any suggestion? I have not engine light on.