Short or long? FRPP or aftermarket. I got an E-mail that Ford will now warranty their header's. I already have Flowmaster Axle-back. I'm looking to compliment the CAI and throttle body and would like to do all the work at the same time. Also, would the header's cause any codes? I assume the tuner will adress those issues when I install all the parts? Thanks for any and all suggestions.
