Available as a coupe only, the SS Supercharged featured the 2.0 L LSJ Ecotec engine with an Eaton M62 Roots type supercharger and air‑to‑liquid intercooler. The engine makes 205 hp (153 kW) at 5600 rpm and 200 lb⋅ft (271 N⋅m) at 4,400 rpm. ... Both stage 1 and 2 kits increase the engine redline to 7,000 rpm.

Is the 2008 Cobalt SS Supercharged?

The Chevy Cobalt SS is largely unchanged for 2008, except that supercharging and port injection have been replaced by turbocharging and direct injection.

How much boost does a Cobalt SS make?

they are rated at 12.5, some spike a little higher, some slightly lower, depending on altitude. "You can polish a turd, but its still a turd!!!"