remove air box completly and attatch the silicone piping over the thottle body. drilled air box is better.
 
airbox needs to come out mate and the inlet pipe that goes to your inlet manifold attatches to the filter, is the filter specially for your car or is it a universal one?
 
I dont see what would be wrong with the drilled airbox if ya use a 2mm bit!!
 
well i've just checked my current Air Filter and think i know the cause of my lack of power.
Its f**ked.

Went to Halfrauds, they are out of air filters for my car :(.

Gonna check if my 1liter mk3 ibiza filter will fit.
 
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please excuse nemo and the darkness.
:p