Man that listing is misleading... Its a naturally aspirated super charged Cobra..
2013 Mustang Cobra Jet features:
Naturally aspirated – Cobra Jet induction system, CNC ported heads, high lift cams, low-drag accessory drive
Supercharged – Ford Racing/Whipple 10-rib 2.9L supercharger, CNC port matched manifold and heads
Yeah .. that's funny. Maybe they meant, 'naturally aspirated' when the bypass valve is open ~