Thats actually a video from a member on here
@randeez
my 2 cents.....if this a daily driver/family hauler I would say go with just the Corsa, if you go with a catted y pipe I don't think you will have an issue with drone but the headers will transmit more engine noise into the cab and while you will get a nice power increase with the tune realistically you will only notice the extra power at WOT...also would like to mention headers are not required to do a cam, I have stock manifolds and Y with a Corsa and a small cam on my 6.2 and it runs great and hauls ass, nothing wrong with doing headers, Im not against them and I have had longtubes on many, many cars and trucks but for me personal preference is factory manifolds and Y with a catback on a daily driver
For reference here is vid of my truck with Kooks Longtubes, off road y pipe and Corsa catback, I later switched it back to factory manifolds and Y pipe, and while it does feel a little slower now overall I am happier with the quieter ride...