I have an Origin Aggressive kit for s13. Rear bumper fitment for the coupe was AWFUL. Stamp on parts shows Mould #1, maybe it's geting outta wack. Skirts and front bumper fit great.
I have Extreme Dimensions front overs on my hatch. Fitement wasn't terrible, some trimming. I beilive the rear bumper on my hatch is ED as well. Fit really, really good. Didn't touch it.