One time does not a crimp-free header make.
I knew I was done with that crap when I went round a banked corner that had a VERY slight crown and it crimped em shut. A little extra compression in the suspension and a little less clearance between the tires was all it took, and I had six inches clearance in the driveway.
Of course, that was day three after the install.
You had most all your extra weight in the *** end of the car and went over something perpendicular to the car.
I wish you well but I am skeptical they'll be great in a year