If you drive a 'Vette people will think you're an a-hole with a small penis before they ever meet you.
But, stock 03-04 Cobras are not that impressive. That is why most people upgrade the blower pulley or the blower itself.
Not now a days no, but back in '03 when they hit the showrooms, a stock 12-second Mustang with a full 3-year factory warranty was practically unheard of.