Strut between lower control arm and "K" frame?

You shouldn't have to do anything with your headers to remove a strut rod. Of course, I haven't seen your headers and what wild design it might have!:lol: You should be able to remove the strut rod front nut, washer, and outer bushing, then remove the rear nut and soak the strut/LCA joint with some penetrating oil. Loosen the torsion bar adjuster, remove the rear torsion bar anchor circlip, and the lower control arm pin nut on the front of the K-member. With a BIG rubber mallet or dead blow hammer, knock the lower control arm and torsion bar to the rear. Tap the strut rod loose from the control arm. There should be enough clearance to now remove the strut rod.