Yeah, I know you said you didn't read the other posts, but we agreed that special variants, it's wise to keep the badges.
Special Edition didn't have unique outside badging, so the spoiler rails and hood can speak for those cars, debadge them.
Though in honesty I think ANY special variant of a car (Limited, Anniversary, Daytona, etc) should be kept totally clean and stock, just for the sake of preserving it...
Special editions actually do have badges on the doors next to the gtp badges.
Don't have a great pic, but this one shows them..
2001 Pontiac Grand Prix GT : Stock and slow and SOLD.
2001 Pontiac Grand Prix GTP Special Edition