It sound stupid and ur all probaly goin to laugh...
but i have managed to locate a cheep bmw mini superchager naw ive been told its a eaton charger?? how would i go bout doin all the correct stuff to get it running nice?? this is the back end of my car as it stands

Im not saving up to buy a cupra cause they are as common as saxo's at the moment!!! (sorry to people who own them ) and i dont like to follow sheep