alternator or CDI cover? which is it?

[kilabeez0]

it's for a 200x, i can't tell if it's the alternator cover i need or the CDI cover from the cylinder head. if i went and checked my parts i'd know, but i'm lazy right now. :D

http://ebay1.ipixmedia.com/abc/M28/_EBAY_6c28da05e04c4455c03254e91cbf14b4/i-1.JPG

[Tecate performance]

it looks like you need the "cdi" advance cover on the head. i see the stator, stator cover, advance mechanism and backing plate, but no cdi cover.