Ok so my car is currently running a generic tune untill friday, this afternoon I got the Cat and dump pipe section of my car changed over, what should I watch out for? like alot of people have said it'll go into limp mode, But shes running fine. Should I maybe just flash it back to stock?? although I have not put my foot down. I'll be right untill friday yeah? The car pretty much wont get driven untill the friday where I drive it up to Simon's. Thanks. Also with the BA and BF did the BA only have 1 censor? (which is before the cat) mine had 2 so we had to drill a little hole to fit the other censor.