Have you tried moving the engine to the passenger side some yet ?

I see you have a Borgensen box , TTi makes the headers to fit with a Chrysler box , is the Borgensen that much bigger in that area ?

Don't try to dent the header with a punch, that is not going to work, especially with the header on the engine and in the car.

If shifting the engine over doesn't get you some room I think you should just bite the bullet and pull the header out , dent it , and put it back.

As far as the drone it's those short case mufflers, put on an ultra flo and see if it changes it .

I have those TTi tailpipes, I'm still trying to figure out what the bleep was going thru TTi's mind when they came up with that mess. I cut mine all up to get them in the FACTORY location, total waste of money .