its a vortech sc...not sure if there is more than one vortech model for the cobra or not, but i know one thing, its VERY quiet. he raced a nitroused vette at milan dragway and beat him even with a 250lb passenger. when they both pulled into the pit area, the guy driving the vette was furious. it was so quiet the vette owner didnt even think he had a sc so he accused him of spraying. he told him to pop his trunk and he asked to look behind his passenger seat to see if he could find a nitrous bottle. LMAO!
