i was goign onto the highway and my check engine light came on and my car is making a horrible noise from engine bay. its sounds like a rediculously loud knocking noise and sqealing! its not drivable! i have to take it into ford! now i have the bat pipe pro flow, and kkm, should i take those off and out the stock setup back on?? will that matter, somthing is seriously wrong and i do not want to pay for it, it should be under warranty????
