Anyone know what this is?
 

circled in purple, seems to be a blower of some sort, cant really see what its feeding though?

http://img.photobucket.com/albums/v1...STI-Spec-1.jpg

Cheers

Paul

hmmm, looks like a secodary air system, bmw had used these for a while before thier petrol engines went to direct injection. It's used on cold starts to reduce emmisions.
Does it function only when the engine is cold and just for a minute or two??

Not sure to be honest, seems to feed the ns spark plugs!!!

If it feeds them is it not your coil pack or one of the coil packs mate?