first part i ever bought was a new battery... the day after i got my first car a R31 Ti skyline... dodgey sales guy fooled me by swapping the battery for a buggered one that he'd charged up enough to get me home.... and to make it worse when i rang him he said "ohhh to bad it didnt go flat in the yard.. i would have given you a new one for free!!" ......wiseguy!