Unsure, but quite a few after market intakes mimic where the factory unit could take air from?
A couple of tuners I spoke with told me not to bother with an aftermarket intake as the factory system with a few mods and a decent after market filter will easily flow enough air for a stage 2 tune
As you say, they are also a world car hence why we still have a snow screen fitted and in extreme cold climates the engines may need to draw a warmer source of air to function within emissions regulations....


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