Yes,most of us have to modify things to fit. Its Hot Rodding.

Buy your pics wont lowering your tranny rear mount Reduce clearence from the header pipe vs the torsion bar. It looks like the torsion bar needs to move Up and Left to slide in.

Most of us do have to dent our headers + space things out for fit. If you dont want any dents you can also recut and reweld the offending pipe.

Fitment issues can require a stacked number of mods to get fit where you want it.