A while ago i did the aerokit grille conversion for the normal cooper s bumper. That was a absolute mare to convert back, so in the end I just bought an original chilli red bumper here on mini2
I've also put back the original bonnet scoop, aerial and stereo.
The only cosmetic difference now are the bullets which i bought to replace the s spokes. They are such an improvement over the s spokes i probably won't switch those back any time soon