Hi, Apologies if this questions been asked, I used search but couldn't find an answer,
I'm picking up a 53 plate Cooper S next week, looks a pretty standard car, seems quick, but as i've never driven any other Cooper S, I cant compare.

My 1st mod, would be the supercharger pulley change, but how do I know if this hasn't already been changed.

Any help appreciated as I am a new owner.

Many thanks in advance

Alot of the aftermarket pullies are stainless steel/ polished aluminum looking. If your Mini has no other Mods that you can see and you are unable to contact the previous owner and it is a black pulley, then its more than likely just stock.