I got the narrow IROC from GT Racing and am having to cut/narrow the front bumper by TWO inches. I was expecting some work but geeeez. This is in addition to alot of finish work to make it look right. The rear bumper will likely need the same treatment.

I also bought a duck from Getty and had only to do some minor sanding and just fill in some minor imperfections in the gel coat, then prime and paint.