recalibration

Hi. I'm the new rookie here, (still looking for my locker). I've gotten some good information from this site so I decided to join. So, with that said, thanks to all the administrators and lay-posters for the questions and the answers. They help alot. :bigthumbsup Okay, on to my issue. Got the...

Howdy all! Newbie to this site, and to this car. Looking at shorty headers for the 4.6L for ease & cost of install, and would like to hear the forums' consensus on fit -n- finish of different brands. ALSO~ is ECU recalibration necessary or desireable for this mod? What performance/economy...