Thoughts/do I need to dent my new headers, new pics ?

Well, as much as I hate to admit this, I’m in Canada and by the time they landed at my door, $1700 Bucks . So yes, taking a hammer to them hurts the wallet.
I feel that pain, mine were 1600, and the fool that installed them for me never checked the clearance, so when I felt something off and crawled under to have a look, I found I have a slight groove worn into one pipe. I was a little more than pissed.