Toyota Levin 4A-GE Exhaust Manifold Gasket

Toyota Corolla Levin and Sprinter Trueno, with the 4A-GE engine, normally we differentiate it with the 16 valves model or 20 valves model, let's take a look on their exhaust manifold gasket as in above photo, looks similar isn't it? May be you just find it the difference is only the gasket material on the above photo.

Now let's overlap both gasket and check it out.

After overlapping both gasket, which shown as in the above photo, all the holes is align well except the 2 holes at the left and right side which have the arrow pointed on it, basically it is only this 2 holes that differentiate this 2 gasket.  

And than, I found this in a website, can you see what have they done on this gasket, the 2 holes that differentiate that 2 gasket, is made longer in this type of gasket, and made this gasket can be use on both for 16 valves and 20 valves model, and I like the way of their design.