Hey whats up guys,
I dynoed my cobalt the other day.The mods i have done are:gm stage 2 w/2.79" pulley,k&n drop in filter and a magnaflow muffler.It put down 246 hp and 228 lb/ft.Im gonna be ordering a header and down pipe soon and redyno it.The stock down pipe is so restrictive on these cars.Im hoping to put down 260+ with the header and down pipe.Heres the sheet.



Peter
'06 Cobalt ss/sc W/G85 Package
Gm Stage II W/2.79" Pulley
K&N Drop In Filter
Custom Magnaflow Dual Exhaust

246hp? lol, I get a kick out of GM. I was just reading about the stage 2 kit the other day, and my friend who owns a SS/SC is looking into getting the stage 2 as well, and GM advertises it as "260hp to the ground'. It should get up there with a new header & cat, but its still badass regardless.

Actually its rated at 241 hp not 260.And there numbers are rated at the flywheel,not at the wheels.


Peter
'06 Cobalt ss/sc W/G85 Package
Gm Stage II W/2.79" Pulley
K&N Drop In Filter
Custom Magnaflow Dual Exhaust

GM also rated it 205 to the crank but they put 210-220 to the wheels stock. good numbers man thats what alot of people are geting with the stage 2