The meguiar's Teg has 2 superchargers I think, not a turbo and super.... I think there is a vortech feeding a jackson racing, which basically only utilizes one at a time depending on RPM. At low RPM the Jackson works it's magic, and then it becomes a passive air mover at higher RPM when the vortech starts to flow well... THe end result is a really really broad torque curve, but it really doesn't add the combined power of both because of the RPM range that they work best in... It's all about the pressure difference on each side of the 2 superchargers...