I did read the entire thread. So 5 people say yes, you build them and then 5 people back out? See my point? Just build them and then sell them, that was my point. Im not doubting your workmanship but if people see a set of your headers installed, leak free then Im sure you would have no issue selling them. Were the intercooler cores ever tested before you sold them? I always wondered why you would not have one on your car? Doesn't make much sense? You seem to get offended easily, Im just asking questions.