I jsut got a 06 Cobalt SSSC and dont know that much about performance upgrading, (infact lets say nothing at all). What is a Stage 2 upgrade, is that something thats worth doing if i want to increase HP a bit? What does it all involve, and is there anything i should know that way i dont hurt the car? Im pretty clueless about this right now.

 

Zzperformance stage 3, look it up

 

its jus a smaller pulley, injectors, shorter belt, and a tune...from stock its a good little increase if your not looking for alot, zzp stage 3 is the same thing but u can go smaller pulley and hav option of different injectors along with a s3 heat exchanger..the stock superchargers create alot of heat so cooling mods help