Matrix 1.8 intake manifold

[dallas]

I went looking for a larger throttle body today from a 1.8 I found one still mounted on a 2007 Matrix manifold. I did not have the manifolds side by side but it sure looks simular to the 1.5 manifold on the Yaris. That got me thinking would it work on our cylinder heads and maybe provide more flow, or is it even the same? I'm tempted to buy it to compare. What about the heads on those two engines are they the same castings ?, Could we use the short block 1.8 to increase displacement ? I'm going to look into this further, if anyone can shead some light let us know.