when bored i took the little plastic vent looking thing out from by the rear window and found it's jst a hole nothing there but the shell, this got me thinking.

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.basically i'm thinking of drilling through into the engine bay and making some vents that work!

anyone ever done anything similar, im pretty certain it won't matter if i got making holes but i thought id put it on here just incase someone knows of any reason not to be making holes i.e.

structural integrity

only little holes mind