How does an AOS work?

WE'RE BACK! Ever wonder why you need an AOS and how it works? That's exactly what we're talking about in this week's Two Minute Tuesday!
WRX
IAG Performance V3 Comp Series AOS: www.subispeed....
IAG Performance V3 Street Series AOS: www.subispeed....
Cobb Tuning AOS: www.subispeed....
Killer B AOS: www.subispeed....
STI
IAG Performance V3 Comp Series AOS: www.subispeed....
IAG Performance V3 Street Series AOS: www.subispeed....
Perrin AOS: www.subispeed....
Grimmspeed AOS: www.subispeed....