hey mike

I just bough a cobalt ss/sc about a week ago, currently has 95k on it

I noticed your post back when you bough your cobalt and you did not know what was done to it well im in the same boat as you were back then. When i got the car i noticed a injen intake, billetflow pulley i believe 2.900 red in color. clutch feels weird not sure it its after market or not.

I have added a megan exhaust to it since i have had it. the car is getting abut 18 lbs boost which is werid and scary. I have not tuned it and i do not know if it has been tuned or not. Now its throwin several check engine codes and it will idle weird at time. ive done a tune up as well.

any insight would be so appreciated as im so confused about the car and if there is something weird with it. btw i live in dearborn, michigan if you ever want to meet up let me knw thanks for your help