hi, I got a 2002 focus, the car has focus sport headers, flex pipe and a thermal exhaust. Since I added the headers, which have no cat. Since it has no cat, I also added a cheater to prevent the check engine to come up. Now, everythin should b k but i still got the damn check enginelight.I went to ford and they told me they didn't know what it was. After a couple days, they called me back and told me the car does not have enough back pressure and that there is nothing to do about it. After talkin to ford, i went to aanother place, "Dynamic turbo" just to ask them what they thought about it, and they told me there is nuttin to do about it either...is there anyway to shut the dam check engine lite off and fix the back pressure problem!???