Port, the A2 Exhaust gasket is bigger than the openings of the A2 head and both headers. look:
So I just used the A3 exhaust gasket, its perfect size. You might have lost alittle power dew to that gasket being bigger, made a gap causing air bubble effect, restricing the exhaust alittle.
Alittle dirty
But I cleaned it up
Freaking A2 injector's top rubber o-rings are slightly smaller than the A3's to snugly fit the AEM fuel rail so I used the A3's top o-rings on the A2's injectors
Intake manifold gaskets are the same size for A2 and A3, stock A2 underneath the hondata heatsheild for A3.
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