04-13-2004, 10:54 PM
I was going to replace my exhaust with a custom setup from magnaflow. I am going to put a muffler and a cat. converter on it. I will have 2.5 pipe ran all the way back. This is my question. I have heard that I might need a sensor from PFYC so that my service engine soon light will not come on. I read that it had something to do with a 02 sensor. Can somebody tell me were they (02) all are and do I need this little box?