I have a 00 prelude and need to put a cat on it cause it is throwing a catylist code cause i currently have a test pipe in place of the cat.. I have a couple questions. first wanted to know if having it throw that code does the ecu put the car in limp mode because mine is oviously running rich.. Second can i run a high flow cat without it possibly not burn hot enough for the obd II ecu, or should i just go for the obd II cat? Thanks