Hey whats up all. I just became a member to the forum world here. I have a 93 civi coupe comp cams stg 2 cam turbo kit(going to install it in one week when weather is nice here in new hampshire) accell wires, H/O blaster coil, bm fuel pressure regulator and some more just wanted to give a brief. When i install the turbo i have a couple questions before i do it. 1 How important is it going to be for me to change out the ecu? 2 i have 2 inch exaust piping on it now, being N/A is 2 and a half going to be to big for the turbo? I think is should be just right but just wanted more advice. Also if anyone has any tire questions of concerns e mail me i am a full time tunner tire tech specialzing in all wheels and tires.