By no means am I assuming James is cheating. Just the opposite. I think others are speculating, exaggerating, etc. Having been around the Bimmer scene for awhile and trading research for some time with other owners, I think the estimates are pretty high. My assumptions are intake, exhaust, and custom chip. If he can do it, more power to him. No pun intended. (Well, maybe just a little bit)

Cheers,

Ken