in need of headers for a 07 cobalt Lt?
I doubt he has SAI, he is in FL, so fairly good chance he doesnt have it, but you never know. Look at your stock header, and tell us if there is a small port where a connector is supposed to go in, that will mean you have SAI.
Check for SAI, if you doen't have SAI 05-06 should fit. https://www.cobaltss.net/forums/2-2l-l61-performance-tech-45/secondary-air-injection-late-production-2006-l61s-38488/
Didn't some people on here also determine that the '07 2.2 manifold was almost the same as the '06 2.0 S/C manifold? That would explain the HP increase between the '06 2.2 and the '07 2.2.
There wasn't a change to the manifold that I know of. There was a change to the shape of the exhaust ports in the head along with a different exhaust cam profile. But the actual plumbing was unchanging to my knowledge.
I wish the original poster would come back, because I'm guessing he has SAI and just doesn't realize that is the problem.
So if you are reading this, and you now see that is the problem, don't fret. You can still use an aftermarket header by removing the SAI system. Post up again if that is the case and we will direct you to the proper instructions.
I wish the original poster would come back, because I'm guessing he has SAI and just doesn't realize that is the problem.
So if you are reading this, and you now see that is the problem, don't fret. You can still use an aftermarket header by removing the SAI system. Post up again if that is the case and we will direct you to the proper instructions.
There wasn't a change to the manifold that I know of. There was a change to the shape of the exhaust ports in the head along with a different exhaust cam profile. But the actual plumbing was unchanging to my knowledge.
I wish the original poster would come back, because I'm guessing he has SAI and just doesn't realize that is the problem.
So if you are reading this, and you now see that is the problem, don't fret. You can still use an aftermarket header by removing the SAI system. Post up again if that is the case and we will direct you to the proper instructions.
I wish the original poster would come back, because I'm guessing he has SAI and just doesn't realize that is the problem.
So if you are reading this, and you now see that is the problem, don't fret. You can still use an aftermarket header by removing the SAI system. Post up again if that is the case and we will direct you to the proper instructions.
Second, the SS/SC Exhaust Manifold is the same Manifold on the 07 2.2 (and late 06's). The downpipe may also be the same, but it hasnt been confirmed yet.
The 07's are using the SS/SC casting minus the drill and talp for the 02 sensor, the 02's are both in the DP.
I wasted $50 on the SS/SC manifold when I could have just hand ported mine. Inlet and and collector were measured exactly the same.
I wasted $50 on the SS/SC manifold when I could have just hand ported mine. Inlet and and collector were measured exactly the same.
yeah, the stock header looks like that with a triangular shape end while the one i ordered doesnt, would u mind telling me how the installation would work because my friend n i tried n it just wouldnt fit unless we were doin it the wrong way
yeah, the stock header looks like that with a triangular shape end while the one i ordered doesnt, would u mind telling me how the installation would work because my friend n i tried n it just wouldnt fit unless we were doin it the wrong way.
yeah, the stock header looks like that with a triangular shape end while the one i ordered doesnt, would u mind telling me how the installation would work because my friend n i tried n it just wouldnt fit unless we were doin it the wrong way.
Last edited by zerodead0; Sep 24, 2007 at 04:48 PM. Reason: Automerged Doublepost
the welding issue is the very reason i've ordered the ss/sc mani. i don't see the gains being that far off anyway considering the rest of my exhaust is 2 1/2 already from the flex pipe back.
go figure gm installs a 2 1/2 flex pipe on a 2 1/4 exhuast....
go figure gm installs a 2 1/2 flex pipe on a 2 1/4 exhuast....
I ordered obx headers too but they just dont fit or im doing something wrong because the picture above is what i have, the stock have a triangular shape end while the obx only has too unless theres a piece missin, someone help me out here
zerodead, like they said, its prob a weld in type or u were spose to get a downpipe from the same company or sometrhing
Can u give me specified directions on how u installed those headers because i have no idea, thank you, can u see the difference with the headers?i do
Last edited by zerodead0; Sep 25, 2007 at 04:14 PM. Reason: Automerged Doublepost
the one you have is not a direct replacement. it's not missing a piece. you have to cut your downpipe for it to fit. there's nothing else you can do. it fits fine, you just didn't cut the downpipe.


