I know the motor itself is almost identical, but I know some years have some variance.
I have an 03 Sunfire Ecotec 2.2 with a 2 1/4 exhaust up to the downpipe and was wanting to get the GMPP exhaust manifold.

Has anyone tried it?
Opinions?

Not wanting a header only because of the fit and the weld cracks, I don't need the fastest car, just a little more edge for the street.

The intake and exhaust manifolds are all directly interchangeable between any of the Eco engines.


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450WHP Turbo Ecotec swap in the works...

^TRUF

Cept that intake manifold with a pulley on it, it has clearance issues on some Ecos

youll be lucky if you see 2-3 flywheel hp with that manifold

Shouldn't it be more like 5-7 hp if you already have a 2 1/4 inch exhaust?

Only the downpipe is stock, and that would change as soon as the manifold is swapped.

wtf? why not just buy a header and gain more?