hi all
i have a 1979 504 XN1 engine
look at the photos..
the original filter

the modified filter

one of them has the original air filter and the other has a modified filter.
but some friends told me that the engine now gets hot air, but the original filter takes air from the front of the engine (cold air)
but the modified filter gets more air.
my questions are
is it true about the hot air ?? that the filter in this place will get hot air.
and what about performance ?? will the engine be much better if i provided colder air ??
please write your thought about what i did .

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thanks in advance