I want to know what are some good headers on the market? What has a good HP gain, dynamics, at good quality? What would you suggest?

 

zzp is good and i think clear image has there own headers aswell

 

i had the rk sport header on my old car it was a 04 cavilier with the same 2.2 you have the header was really nice i picked up 2 tenths at the 1/8 mile track and two more tenths with a cold air intake from rk sport now here is the funny part i went and got a manga flow cat back and picked up nothing the header is coated its a 4 2 1 header you cant go wrong with this set up

 

Depends. where are you looking for your power to be at. Low, Mid, or High in the powerband. Look through the 2.2 sections you will find a lot about headers, exhaust, and intakes. Go do some research on different headers, Shorties, Long tube, Tri-y, and etc. What year is your car.

Don't think those will fit on the cobalt.

 

they may not but i think rk sport makes them for the cobalt

 

The wont fit due to the sway bar but RK does make crap for the balt

 

The ZZP header will not fit without modification.

I have one but I had to have it slightly modified to fit.

Otherwise I would highly recommend it. It's awesome!

 

Vibrant is good. I have that and loved the gain i felt.