MikeBergy
Blah blah blah....
true but the b16 head has better air flow making your car higher compression it is cheaper but i think you will get better power out of the b16 head rather than the gsr head
That is COMPLETELY untrue. The GSR head will give you more compression. You might get ~1-3% increase in volumetric efficiency at higher rpms from the pr3 head, stock for stock.